diff --git a/e2e/suite_client_test.go b/e2e/suite_client_test.go
new file mode 100644
index 000000000..6a4a95909
--- /dev/null
+++ b/e2e/suite_client_test.go
@@ -0,0 +1,59 @@
+//go:build e2e
+
+// Copyright 2020-2023 Project Capsule Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package e2e
+
+import (
+	"context"
+	"time"
+
+	"sigs.k8s.io/controller-runtime/pkg/client"
+)
+
+type e2eClient struct {
+	client.Client
+}
+
+func (e *e2eClient) Get(ctx context.Context, key client.ObjectKey, obj client.Object, opts ...client.GetOption) error {
+	time.Sleep(time.Second)
+
+	return e.Client.Get(ctx, key, obj, opts...)
+}
+
+func (e *e2eClient) List(ctx context.Context, list client.ObjectList, opts ...client.ListOption) error {
+	time.Sleep(time.Second)
+
+	return e.Client.List(ctx, list, opts...)
+}
+
+func (e *e2eClient) Create(ctx context.Context, obj client.Object, opts ...client.CreateOption) error {
+	time.Sleep(time.Second)
+
+	return e.Client.Create(ctx, obj, opts...)
+}
+
+func (e *e2eClient) Delete(ctx context.Context, obj client.Object, opts ...client.DeleteOption) error {
+	time.Sleep(time.Second)
+
+	return e.Client.Delete(ctx, obj, opts...)
+}
+
+func (e *e2eClient) Update(ctx context.Context, obj client.Object, opts ...client.UpdateOption) error {
+	time.Sleep(time.Second)
+
+	return e.Client.Update(ctx, obj, opts...)
+}
+
+func (e *e2eClient) Patch(ctx context.Context, obj client.Object, patch client.Patch, opts ...client.PatchOption) error {
+	time.Sleep(time.Second)
+
+	return e.Client.Patch(ctx, obj, patch, opts...)
+}
+
+func (e *e2eClient) DeleteAllOf(ctx context.Context, obj client.Object, opts ...client.DeleteAllOfOption) error {
+	time.Sleep(time.Second)
+
+	return e.Client.DeleteAllOf(ctx, obj, opts...)
+}
diff --git a/e2e/suite_test.go b/e2e/suite_test.go
index 8897a9034..886d8bd41 100644
--- a/e2e/suite_test.go
+++ b/e2e/suite_test.go
@@ -53,9 +53,11 @@ var _ = BeforeSuite(func() {
 
 	Expect(capsulev1beta2.AddToScheme(scheme.Scheme)).NotTo(HaveOccurred())
 
-	k8sClient, err = client.New(cfg, client.Options{Scheme: scheme.Scheme})
+	ctrlClient, err := client.New(cfg, client.Options{Scheme: scheme.Scheme})
 	Expect(err).ToNot(HaveOccurred())
-	Expect(k8sClient).ToNot(BeNil())
+	Expect(ctrlClient).ToNot(BeNil())
+
+	k8sClient = e2eClient{Client: ctrlClient}
 })
 
 var _ = AfterSuite(func() {
@@ -70,5 +72,6 @@ func ownerClient(owner capsulev1beta2.OwnerSpec) (cs kubernetes.Interface) {
 	c.Impersonate.UserName = owner.Name
 	cs, err = kubernetes.NewForConfig(c)
 	Expect(err).ToNot(HaveOccurred())
-	return
+
+	return cs
 }