diff --git a/Makefile b/Makefile
index 8dec6f04a4143..9f8adf87d44c6 100644
--- a/Makefile
+++ b/Makefile
@@ -486,6 +486,7 @@ start-e2e-local: mod-vendor-local dep-ui-local cli-local
 	ARGOCD_APPLICATIONSET_CONTROLLER_ALLOWED_SCM_PROVIDERS=http://127.0.0.1:8341,http://127.0.0.1:8342,http://127.0.0.1:8343,http://127.0.0.1:8344 \
 	ARGOCD_E2E_TEST=true \
 	ARGOCD_HYDRATOR_ENABLED=true \
+	ARGOCD_CLUSTER_CACHE_EVENTS_PROCESSING_INTERVAL=1ms \
 		goreman -f $(ARGOCD_PROCFILE) start ${ARGOCD_START}
 	ls -lrt /tmp/coverage
 
diff --git a/test/e2e/fixture/account/actions.go b/test/e2e/fixture/account/actions.go
index aafd7e1136162..209d824254e48 100644
--- a/test/e2e/fixture/account/actions.go
+++ b/test/e2e/fixture/account/actions.go
@@ -1,6 +1,8 @@
 package project
 
 import (
+	"time"
+
 	"github.com/stretchr/testify/require"
 
 	"github.com/argoproj/argo-cd/v3/test/e2e/fixture"
@@ -81,5 +83,6 @@ func (a *Actions) runCli(args ...string) {
 
 func (a *Actions) Then() *Consequences {
 	a.context.t.Helper()
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return &Consequences{a.context, a}
 }
diff --git a/test/e2e/fixture/account/consequences.go b/test/e2e/fixture/account/consequences.go
index 9c526edbbb0c1..d59008b1ba1ce 100644
--- a/test/e2e/fixture/account/consequences.go
+++ b/test/e2e/fixture/account/consequences.go
@@ -3,6 +3,7 @@ package project
 import (
 	"context"
 	"errors"
+	"time"
 
 	"github.com/stretchr/testify/require"
 
@@ -64,5 +65,6 @@ func (c *Consequences) Given() *Context {
 }
 
 func (c *Consequences) When() *Actions {
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return c.actions
 }
diff --git a/test/e2e/fixture/account/context.go b/test/e2e/fixture/account/context.go
index d639faf1969fa..2f9af3b47ada5 100644
--- a/test/e2e/fixture/account/context.go
+++ b/test/e2e/fixture/account/context.go
@@ -2,6 +2,7 @@ package project
 
 import (
 	"testing"
+	"time"
 
 	"github.com/argoproj/argo-cd/v3/test/e2e/fixture"
 	"github.com/argoproj/argo-cd/v3/util/env"
@@ -45,5 +46,6 @@ func (c *Context) And(block func()) *Context {
 }
 
 func (c *Context) When() *Actions {
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return &Actions{context: c}
 }
diff --git a/test/e2e/fixture/admin/actions.go b/test/e2e/fixture/admin/actions.go
index e25de18bbaa32..1c534df0f9501 100644
--- a/test/e2e/fixture/admin/actions.go
+++ b/test/e2e/fixture/admin/actions.go
@@ -1,6 +1,8 @@
 package admin
 
 import (
+	"time"
+
 	"github.com/argoproj/argo-cd/v3/test/e2e/fixture"
 )
 
@@ -63,5 +65,6 @@ func (a *Actions) runCliWithStdin(stdin string, args ...string) {
 
 func (a *Actions) Then() *Consequences {
 	a.context.t.Helper()
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return &Consequences{a.context, a}
 }
diff --git a/test/e2e/fixture/admin/consequences.go b/test/e2e/fixture/admin/consequences.go
index b9bf1dcc28dc9..9b81d4fa740fc 100644
--- a/test/e2e/fixture/admin/consequences.go
+++ b/test/e2e/fixture/admin/consequences.go
@@ -1,6 +1,9 @@
 package admin
 
 import (
+	"time"
+
+	"github.com/argoproj/argo-cd/v3/test/e2e/fixture"
 	. "github.com/argoproj/argo-cd/v3/test/e2e/fixture/admin/utils"
 )
 
@@ -33,5 +36,6 @@ func (c *Consequences) Given() *Context {
 }
 
 func (c *Consequences) When() *Actions {
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return c.actions
 }
diff --git a/test/e2e/fixture/admin/context.go b/test/e2e/fixture/admin/context.go
index 76d91af8677f8..8b8b44bef4595 100644
--- a/test/e2e/fixture/admin/context.go
+++ b/test/e2e/fixture/admin/context.go
@@ -2,6 +2,7 @@ package admin
 
 import (
 	"testing"
+	"time"
 
 	"github.com/argoproj/argo-cd/v3/test/e2e/fixture"
 	"github.com/argoproj/argo-cd/v3/util/env"
@@ -39,5 +40,6 @@ func (c *Context) And(block func()) *Context {
 }
 
 func (c *Context) When() *Actions {
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return &Actions{context: c}
 }
diff --git a/test/e2e/fixture/app/actions.go b/test/e2e/fixture/app/actions.go
index d880f1b40cc33..47083b86fbef9 100644
--- a/test/e2e/fixture/app/actions.go
+++ b/test/e2e/fixture/app/actions.go
@@ -6,6 +6,7 @@ import (
 	"os"
 	"slices"
 	"strconv"
+	"time"
 
 	rbacv1 "k8s.io/api/rbac/v1"
 
@@ -492,6 +493,7 @@ func (a *Actions) And(block func()) *Actions {
 
 func (a *Actions) Then() *Consequences {
 	a.context.t.Helper()
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return &Consequences{a.context, a, 15}
 }
 
diff --git a/test/e2e/fixture/app/consequences.go b/test/e2e/fixture/app/consequences.go
index 05fdb17a2af4d..39c7839aa1550 100644
--- a/test/e2e/fixture/app/consequences.go
+++ b/test/e2e/fixture/app/consequences.go
@@ -101,6 +101,7 @@ func (c *Consequences) Given() *Context {
 }
 
 func (c *Consequences) When() *Actions {
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return c.actions
 }
 
diff --git a/test/e2e/fixture/app/context.go b/test/e2e/fixture/app/context.go
index 503405614a7b6..f3343e7d1780c 100644
--- a/test/e2e/fixture/app/context.go
+++ b/test/e2e/fixture/app/context.go
@@ -348,6 +348,7 @@ func (c *Context) And(block func()) *Context {
 }
 
 func (c *Context) When() *Actions {
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return &Actions{context: c}
 }
 
diff --git a/test/e2e/fixture/applicationsets/actions.go b/test/e2e/fixture/applicationsets/actions.go
index ebf755b3438aa..89c217e3ec19a 100644
--- a/test/e2e/fixture/applicationsets/actions.go
+++ b/test/e2e/fixture/applicationsets/actions.go
@@ -61,6 +61,7 @@ func (a *Actions) And(block func()) *Actions {
 
 func (a *Actions) Then() *Consequences {
 	a.context.t.Helper()
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return &Consequences{a.context, a}
 }
 
diff --git a/test/e2e/fixture/applicationsets/consequences.go b/test/e2e/fixture/applicationsets/consequences.go
index 22dea84247a08..1cab2b8e0067f 100644
--- a/test/e2e/fixture/applicationsets/consequences.go
+++ b/test/e2e/fixture/applicationsets/consequences.go
@@ -71,6 +71,7 @@ func (c *Consequences) Given() *Context {
 }
 
 func (c *Consequences) When() *Actions {
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return c.actions
 }
 
diff --git a/test/e2e/fixture/applicationsets/context.go b/test/e2e/fixture/applicationsets/context.go
index 4533bb61c3948..00bd71a1d07d5 100644
--- a/test/e2e/fixture/applicationsets/context.go
+++ b/test/e2e/fixture/applicationsets/context.go
@@ -29,6 +29,7 @@ func Given(t *testing.T) *Context {
 }
 
 func (c *Context) When() *Actions {
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return &Actions{context: c}
 }
 
diff --git a/test/e2e/fixture/cluster/actions.go b/test/e2e/fixture/cluster/actions.go
index 4c03cf570524a..66112efb786d7 100644
--- a/test/e2e/fixture/cluster/actions.go
+++ b/test/e2e/fixture/cluster/actions.go
@@ -5,6 +5,7 @@ import (
 	"errors"
 	"log"
 	"strings"
+	"time"
 
 	"k8s.io/client-go/kubernetes"
 	"k8s.io/client-go/tools/clientcmd"
@@ -131,6 +132,7 @@ func (a *Actions) DeleteByServer() *Actions {
 
 func (a *Actions) Then() *Consequences {
 	a.context.t.Helper()
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return &Consequences{a.context, a}
 }
 
diff --git a/test/e2e/fixture/cluster/consequences.go b/test/e2e/fixture/cluster/consequences.go
index d6a856708a91c..97a456b53e28d 100644
--- a/test/e2e/fixture/cluster/consequences.go
+++ b/test/e2e/fixture/cluster/consequences.go
@@ -3,6 +3,7 @@ package cluster
 import (
 	"context"
 	"errors"
+	"time"
 
 	clusterpkg "github.com/argoproj/argo-cd/v3/pkg/apiclient/cluster"
 	"github.com/argoproj/argo-cd/v3/pkg/apis/application/v1alpha1"
@@ -54,5 +55,6 @@ func (c *Consequences) Given() *Context {
 }
 
 func (c *Consequences) When() *Actions {
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return c.actions
 }
diff --git a/test/e2e/fixture/cluster/context.go b/test/e2e/fixture/cluster/context.go
index 83d1541772fe7..8668797065505 100644
--- a/test/e2e/fixture/cluster/context.go
+++ b/test/e2e/fixture/cluster/context.go
@@ -2,6 +2,7 @@ package cluster
 
 import (
 	"testing"
+	"time"
 
 	"github.com/argoproj/argo-cd/v3/test/e2e/fixture"
 	"github.com/argoproj/argo-cd/v3/util/env"
@@ -59,6 +60,7 @@ func (c *Context) And(block func()) *Context {
 }
 
 func (c *Context) When() *Actions {
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return &Actions{context: c}
 }
 
diff --git a/test/e2e/fixture/fixture.go b/test/e2e/fixture/fixture.go
index 55e82fbc919b3..98a2d6ff1c5f9 100644
--- a/test/e2e/fixture/fixture.go
+++ b/test/e2e/fixture/fixture.go
@@ -66,6 +66,9 @@ const (
 	PluginSockFilePath = "/app/config/plugin"
 
 	E2ETestPrefix = "e2e-test-"
+
+	// Account for batch events processing (set to 1ms in e2e tests)
+	WhenThenSleepInterval = 5 * time.Millisecond
 )
 
 const (
diff --git a/test/e2e/fixture/notification/actions.go b/test/e2e/fixture/notification/actions.go
index 81b35e50de3d7..6a42eb1d92fcd 100644
--- a/test/e2e/fixture/notification/actions.go
+++ b/test/e2e/fixture/notification/actions.go
@@ -1,6 +1,8 @@
 package notification
 
 import (
+	"time"
+
 	"github.com/stretchr/testify/require"
 
 	"github.com/argoproj/argo-cd/v3/test/e2e/fixture"
@@ -24,6 +26,7 @@ func (a *Actions) SetParamInNotificationConfigMap(key, value string) *Actions {
 
 func (a *Actions) Then() *Consequences {
 	a.context.t.Helper()
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return &Consequences{a.context, a}
 }
 
diff --git a/test/e2e/fixture/notification/consequences.go b/test/e2e/fixture/notification/consequences.go
index 4401268a45928..6fdd8df5ee020 100644
--- a/test/e2e/fixture/notification/consequences.go
+++ b/test/e2e/fixture/notification/consequences.go
@@ -2,6 +2,7 @@ package notification
 
 import (
 	"context"
+	"time"
 
 	"github.com/argoproj/argo-cd/v3/pkg/apiclient/notification"
 	"github.com/argoproj/argo-cd/v3/test/e2e/fixture"
@@ -53,6 +54,7 @@ func (c *Consequences) listTemplates() (*notification.TemplateList, error) {
 }
 
 func (c *Consequences) When() *Actions {
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return c.actions
 }
 
diff --git a/test/e2e/fixture/notification/context.go b/test/e2e/fixture/notification/context.go
index 3bf075ff54ddb..86fcad7727d83 100644
--- a/test/e2e/fixture/notification/context.go
+++ b/test/e2e/fixture/notification/context.go
@@ -2,6 +2,7 @@ package notification
 
 import (
 	"testing"
+	"time"
 
 	"github.com/argoproj/argo-cd/v3/test/e2e/fixture"
 )
@@ -23,5 +24,6 @@ func (c *Context) And(block func()) *Context {
 }
 
 func (c *Context) When() *Actions {
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return &Actions{context: c}
 }
diff --git a/test/e2e/fixture/project/actions.go b/test/e2e/fixture/project/actions.go
index 7e2df3b3e7756..39e590c4631f2 100644
--- a/test/e2e/fixture/project/actions.go
+++ b/test/e2e/fixture/project/actions.go
@@ -3,6 +3,7 @@ package project
 import (
 	"context"
 	"strings"
+	"time"
 
 	"github.com/stretchr/testify/require"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -112,6 +113,7 @@ func (a *Actions) And(block func()) *Actions {
 
 func (a *Actions) Then() *Consequences {
 	a.context.t.Helper()
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return &Consequences{a.context, a}
 }
 
diff --git a/test/e2e/fixture/project/consequences.go b/test/e2e/fixture/project/consequences.go
index 3abcec5053555..94d868c06d56b 100644
--- a/test/e2e/fixture/project/consequences.go
+++ b/test/e2e/fixture/project/consequences.go
@@ -2,6 +2,7 @@ package project
 
 import (
 	"context"
+	"time"
 
 	"github.com/argoproj/argo-cd/v3/pkg/apiclient/project"
 
@@ -43,5 +44,6 @@ func (c *Consequences) Given() *Context {
 }
 
 func (c *Consequences) When() *Actions {
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return c.actions
 }
diff --git a/test/e2e/fixture/project/context.go b/test/e2e/fixture/project/context.go
index d0f9118a5b603..6c1aa2bb0d6d9 100644
--- a/test/e2e/fixture/project/context.go
+++ b/test/e2e/fixture/project/context.go
@@ -2,6 +2,7 @@ package project
 
 import (
 	"testing"
+	"time"
 
 	"github.com/argoproj/argo-cd/v3/test/e2e/fixture"
 	"github.com/argoproj/argo-cd/v3/util/env"
@@ -68,5 +69,6 @@ func (c *Context) And(block func()) *Context {
 }
 
 func (c *Context) When() *Actions {
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return &Actions{context: c}
 }
diff --git a/test/e2e/fixture/repos/actions.go b/test/e2e/fixture/repos/actions.go
index c573632dfd9b3..71d483fda7a62 100644
--- a/test/e2e/fixture/repos/actions.go
+++ b/test/e2e/fixture/repos/actions.go
@@ -2,6 +2,7 @@ package repos
 
 import (
 	"log"
+	"time"
 
 	"github.com/argoproj/argo-cd/v3/test/e2e/fixture"
 )
@@ -77,6 +78,7 @@ func (a *Actions) Project(project string) *Actions {
 
 func (a *Actions) Then() *Consequences {
 	a.context.t.Helper()
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return &Consequences{a.context, a}
 }
 
diff --git a/test/e2e/fixture/repos/consequences.go b/test/e2e/fixture/repos/consequences.go
index 77658077b46d8..34a891914c671 100644
--- a/test/e2e/fixture/repos/consequences.go
+++ b/test/e2e/fixture/repos/consequences.go
@@ -3,6 +3,7 @@ package repos
 import (
 	"context"
 	"errors"
+	"time"
 
 	repositorypkg "github.com/argoproj/argo-cd/v3/pkg/apiclient/repository"
 	"github.com/argoproj/argo-cd/v3/pkg/apis/application/v1alpha1"
@@ -54,5 +55,6 @@ func (c *Consequences) Given() *Context {
 }
 
 func (c *Consequences) When() *Actions {
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return c.actions
 }
diff --git a/test/e2e/fixture/repos/context.go b/test/e2e/fixture/repos/context.go
index bb99f7ef2a450..57e6b4c127e8f 100644
--- a/test/e2e/fixture/repos/context.go
+++ b/test/e2e/fixture/repos/context.go
@@ -2,6 +2,7 @@ package repos
 
 import (
 	"testing"
+	"time"
 
 	"github.com/argoproj/argo-cd/v3/test/e2e/fixture"
 	"github.com/argoproj/argo-cd/v3/util/env"
@@ -54,6 +55,7 @@ func (c *Context) And(block func()) *Context {
 }
 
 func (c *Context) When() *Actions {
+	time.Sleep(fixture.WhenThenSleepInterval)
 	return &Actions{context: c}
 }