Have been using this to see if there is any noticeable differences in the grafics. Jury is still out on that one. But do I have to start the profiler & select rfactor2.exe every time I start rf2?
No. NVP it's not necessary unless you're trying to run rF2 in SLI. But doing so you're be entering to a new world of harshness and nightmare. The possible exception is to manage the transparency anti-alias which allow a number of additional options in Nvidia Profiler. If you play around with the AA transparency settings you can manage to gain some FPS that you couldn't in regular Nvidia desktop control panel.