Upgrading to camunda8

Hi all ,
I have one simple question :slight_smile:
Did you advise me to upgrade to camunda8 from camunda 7 , if i use flow all depends on synchronous execution. or should I just keep using camunda7??
and if it’s okay to upgrade to camunda8 how can i resolve the asynchronous thing.
it takes me so much effort and time to find a suitable way without using polling as it affects the performance.

Thank you