RE: Inpiron 15R 5537 - Bad game performance or unability to Sleep/Hibernate?
I've set the Power Management mode to High Performance, set the Global Switchable Graphics settings to Maximize Performance when AC cable plugged in, and set the game .exes in Switchable Graphics to utilize the AMD dgpu - the problem is still present for me.
Also, there is no Windows Experience index in Windows 8.1...
Any other ideas?
EDIT: found out that you can still run WinSAT on 8.1 by opening an admin cmd and typing in "winsat prepop" (or just download Winaero WEI Tool), so I ran it and restarted the system as you suggested - problem is still present for me.