Driver issue? I just tried out a program I'm working on. Approx 200 FPS, doesn't decrease at all when hovering over an icon.
Another thought, maybe your system is slow? I know blitz likes to hog CPU cycles from windows. If your system is slow and Blitz is grabbing 100% of the CPU, then activating someting like a tooltip will require some CPU cycles so Blitz framerate will drop, although I can't imagine it dropping that much just to open a tooltip.
Another thought, maybe your system is slow? I know blitz likes to hog CPU cycles from windows. If your system is slow and Blitz is grabbing 100% of the CPU, then activating someting like a tooltip will require some CPU cycles so Blitz framerate will drop, although I can't imagine it dropping that much just to open a tooltip.