Kodi becomes sluggish after playing a dx11 game

So i use two monitors, one dedicated to kodi and the other for browsing and playing games.
I have noticed recently that when i play a dx11 game the kodi screen freezes.
Now the problem comes when i have closed the game kodi will become very slow and sluggish in the menus even though the cpu and memory are working low.
A restart of kodi fixes it, its just a little bit annoying. Is this a known directx 11 issue or is it something with kodi?