Thks a lot for your inputs , guyz
i must give you some precisions :
1° multitimbral insert is super fast , it's doing it on templates only
2° default channel strips si the lightest on my templates (eq alone)
3° Making a template from scratch does the same , notice that my template insert a drum bus and that's it , no fx , no sends , ect)
4) The drive (pretty full is a usb stick for waves licences)
5) the screensets are the same in both projects (x1 and paltnum) so even if the browser is here , it's here for both ;)
it's not system related , since it wasn't like that on the braintree upadte (even if it was long) and i remenber that X3 was slower than X1 (like 2 time slower) on another desktop (I7 920 based ) a desktop made by and for Cakewalk (integrator)
Specs are :
Molten Muse + = I7 4790s , 16GB of ram, 2 ssd evo's (one for OS , one for Data)
RME UCX 128 samples (tried all buffer size)
Again inserting a multimbrale from scratch is fast .... via a template (and not only a multitimbrale ) and bam = slow jam
Concerning the gui slowness ....well i can't explain this , it wasn't here last upadte ...