very low FPS about dhewm3

[ak1dd]

UPDATE: As I posted this, I recalled this Dell laptop - like many - has 2 video cards. In my case the Nvidia 4070 and Intel Iris Xe. Windows chooses which using some voodoo algorithm and so far all games run on the Nvidia card. Windows allows you to manually manage which to use per application via: Settings>System>Display>Graphics - then look for any apps that have been previously executed on the system. I found the listings for DOOM 3. The one that says Doom 3 for dhewm3.exe (BFG and OG Doom3 were there as they had been installed also) simply says "Let Windows Decide". So far on my machine Windows has chosen "High Performance" for other games - including Doom3BFG. Well I guess Windows decided to run on the Iris. I changed this and restarted Dhewm and suddenly everything runs above 150fps+

So this isn't a dhewm3 bug but I thought this might be good for an FAQ item.