Push and many UI events

Hello community,

in my UI i use a Grid + Push with a LazyQueryContainer (max 5000 rows) . If i create a entity in the backend, i will send a event over a event bus. The UI receive the event and add the entity to the container in an access runnable. 
But if i create 5.000-10.000 entities in a short time, the UI will freeze because the access queue is overloaded. 
So what can i do? What is best practice in vaadin to handle many events?

vaadinUI.access(() -> {
                  addEntityToContainer()
                });

Thanks and cheers

Dennis