Latest GD ver Debugger Slowdowns and Error

In the latest GD ver i’ve noticed a big slowdown in performance that happens randomly mosts of the time during debugger…but happens a bit in preview too.
But i’ve only 3.4 ms latency (is it too much?)

Today i got this error…


and this after ok click

as an unexperienced user i guess it should be something related to the emitter box…but i may be wrong.
The only emitter i use is binded to a custom object.
I’m saying this only if can help to detect the issue.

Never had slowdowns or errors in previous GD vers.