diff --git a/pkg/controllers/nodeclaim/garbagecollection/controller.go b/pkg/controllers/nodeclaim/garbagecollection/controller.go
index 892d9853..aad5f6c4 100644
--- a/pkg/controllers/nodeclaim/garbagecollection/controller.go
+++ b/pkg/controllers/nodeclaim/garbagecollection/controller.go
@@ -89,7 +89,7 @@ func (c *Controller) Reconcile(ctx context.Context) (reconcile.Result, error) {
 		return reconcile.Result{}, err
 	}
 	c.successfulCount++
-	return reconcile.Result{RequeueAfter: lo.Ternary(c.successfulCount <= 20, time.Second*10, time.Minute*2)}, nil
+	return reconcile.Result{RequeueAfter: lo.Ternary(c.successfulCount <= 20, time.Second*10, time.Minute)}, nil
 }
 
 func (c *Controller) garbageCollect(ctx context.Context, nodeClaim *karpv1.NodeClaim, nodeList *corev1.NodeList) error {
diff --git a/pkg/providers/instancetype/instancetype.go b/pkg/providers/instancetype/instancetype.go
index b14f2675..a3cf8228 100644
--- a/pkg/providers/instancetype/instancetype.go
+++ b/pkg/providers/instancetype/instancetype.go
@@ -145,9 +145,17 @@ func (p *DefaultProvider) List(ctx context.Context, kc *v1alpha1.KubeletConfigur
 	)
 
 	if item, ok := p.instanceTypesCache.Get(key); ok {
-		// Ensure what's returned from this function is a shallow-copy of the slice (not a deep-copy of the data itself)
-		// so that modifications to the ordering of the data don't affect the original
-		return append([]*cloudprovider.InstanceType{}, item.([]*cloudprovider.InstanceType)...), nil
+		// TODO: some place changes the Capacity filed, we should find it out and fix it, same with aws provider
+		return lo.Map(item.([]*cloudprovider.InstanceType),
+			func(item *cloudprovider.InstanceType, _ int) *cloudprovider.InstanceType {
+				return &cloudprovider.InstanceType{
+					Name:         item.Name,
+					Requirements: item.Requirements,
+					Offerings:    item.Offerings,
+					Capacity:     item.Capacity.DeepCopy(),
+					Overhead:     item.Overhead,
+				}
+			}), nil
 	}
 
 	// Get all zones across all offerings