In order to get the best performance for a DAW PC, its best to only use this for exactly creating audio and nothing else.
Since I only have one PC for all that I do, that be daily stuff like netbanking, Facebook and gaming. And on the other my audio creations.
All the files, virus scans and other junk etc. running on a normal pc will over time slow it down, thats why some use cleaning programs, regcleaners etc. etc. and that might work.
Others tend do a clean windows install once in a while.
Finally a real update of Ableton Live to 9.5 with lots of create features. Simpler has been getting a great overhaul, there a new filters,
updates to the layout and lots of new features and sounds.
Also Push 2 has been released and it looks great, I myself have been looking to buy Push 1(the original) but Im glad I didnt as Push 2
eventhough its more expendsive has so much more to offer. A more slick design/UI and not least great LCD displays and much better
integration with Live and also VST instruments.
I have ordered mine already and will be uploading some vidioes of my doings.
Until then head over to Ableton Live and watch there tutorials here.