Ok thanks guys ,
I am going to open task manager and as I freeze each plugin I am going to find out which are the hungry beasts !
Then I will also know for future reference ..
As for track fx is there a difference in ( memory / pc load ) using sonars sonitus Dx versus 3rd party - see I love sonitus gate , compressor , and reverb and use the Dx version heaps ( along with heaps of other plugins ( I just thought Dx versions inside sonar would be less of a hog ?
Anyways I have optimised Windows 10 for daw , including the send to background processors ,in settings along with as much as I am comfortable with , though I hear what your saying and know there's a lot more that could be tweaked !
I have tried a few times to find the actual place where I can add my specs to my forum signature but can not find where to put that info - I will have another look now through the menu then through the user panel , maybe I will find it today !