Record in session: mad cpu spikes

[Benshik]

Hi guys,
with 6.01 I'm getting serious cpu spikes in the session view. I checked with 5.2.1 and it was fine so i guess its a bug:

I record a clip in the session view, when i retrigger the clip so it stops recording and starts to loop my whole computer freezes for a few seconds, and when it all starts playing again i get cpu spikes of 825% of something!!!!

Someone else experienced that?

cheers

Ben