Hi UndralBatsukh,
As the demo videos shown, the usage of GPU in 4.21 was "huge" by comparing with 3.33. We also experienced that the map display was delayed. Same client machine and same map services.
We cannot share the application here since they are deployed in client's Intranet. Is there any lead for us to diagnostic?
I will arrange test on latest API first. Thanks for your reply.