I tried the keyclone regions (1120x1050, and 560x525) but didnt like it as the wows were too distorted.
might have done something wrong but in any case it didnt look too good (minimap was a '0' shape instead of an 'O' for example)
For what i tested the PiP swapping didnt seem much quicker at all. i guess as long as all windows have the same ratio it's ok, no matter what the ratio is.

I also tried putting all the same setting on all 3 windows (instead of a higher detail on the main). that seemed to have helped a bit, then again it could be because i lowered the settings on the main window, not because it made PiP quicker.
not sure i 'm explaining this well lol.

Any other suggestions?
If it's just a question of hardware it's ok, i'm happy to stay with PiP as it is, but just looking if there is some tweaking possible.

Thanks
-Zub