Feature request: Add a feature that blocks desktop compositing

Submitted by Luca osvaldo

Assigned to Olivier Fourdan @olivier

Link to original bug (#12886)

Description

Just a little feature request, I've recentely seen that the recent version of KDE plasma 5.8 has a new function that disables desktop compositing when a game-like program is detected, I don't know if that works exactly like this, but when I open a game, even when I'm not in fullscreen, the desktop compositing is disabled and the performance are really nice.

Thank for your attention.