(Solved) slowness issue

[KHRZ]

Massive edit:

1st price in strangest behaviour: Dolphin emu!

So today I did my tests of the revs again, but they all ran in the best speed they ever have. No settings changed.

BTW I had an interesting bug in SMG, windowed mode. When i went in-game, the screen froze for a moment, said "no signal", then the desktop and Dolphin window returned. it ran in 10FPS more than normal, but the screen was black. Sound was there.
(Glitch theory: Game genuinly ran faster, because of graphics not fully drawn?)
Also, anything else than Dolphin hardly responded, took a few tries to kill it in task manager. I always start it in high priority but it seemed this time to drain more of the CPU than usual.

[Unknownforce]

This just reminds me of the saying I have at work.... "When in doubt, reboot"