VERY low fps

[Guest]

I have a some-what low spec laptop so I decided to play older games, and downloaded GZDOOM, but whenever I run it i get about 0.3 fps and 4000 ms. When I use MSI afterburner it shows that the game is using 0% of my GPU and about 50% of my cpu. My specs are:

CPU:i7-3687u
GPU:Intel HD 4000
Memory:10 GB DDR3-1333
Storage: 256 GB SSD
OS: Windows 10 version 1803

Considering this is a fairly old game and I get 60 fps+ on all other games I play (old games) I'm pretty sure it's a technical issue I just don't know what's the problem. Any help will be appreciated.

[Rachael]

There's literally no excuse for a system like that to have that low of a frame rate. At worst you should get about 15-20 FPS, depending on your resolution - higher if lower res.

I think what's happened here is the display drivers are not properly installed so it's reverting to a software rendered OpenGL.

Make sure to actually install Intel drivers, NOT Microsoft drivers, because Microsoft typically does not include the OpenGL ICD's.

EDIT: I just remembered - Intel drivers for the HD4000 are *not* compatible with Windows 10. You will need to patch GZDoom with this utility. And possibly any other OpenGL program you plan to run, as well. That fools the drivers into thinking you're using Windows 8 - and then it will work properly.

[Enjay]

It's also worth pointing out that GZDoom is not really an old game in the traditional sense. It may be based on an old game engine and use an old resource file to provide game data but it also uses some much newer features that were not around when Doom was new and which require newer and much more powerful hardware than was needed to run Doom.

That doesn't negate anything Rachael said. I just wanted to address a common misconception.

[Graf Zahl]

Intel HD 4000 should manage 30 fps on an average system. When I tested the integrated chipset in my system it ran semi-decently, not great but serviceable.