Framerate issues in PrBoom Plus

[Doomsday]

I keep having issues with my framerate in Prboom where whenever I face a wall standing up close to it my fps goes down to 60 which causes my aim to go weird and it just feels choppy until I move away from the wall.
It doesn't do it with Glboom but I prefer the way Prboom looks, also I have a pretty good PC so I don't understand why it does this.

[tomas7777]

12 hours ago, Doomsdλy1993 said:

It doesn't do it with Glboom but I prefer the way Prboom looks, also I have a pretty good PC so I don't understand why it does this.

PrBoom uses Software renderer which means your CPU does all the graphics heavy lifting. Depending mostly on your CPU and the resolution you're playing at, it might struggle. Here on my laptop with an i5-7300HQ, at 1080p and E1M1 starting room, I'm barely getting 100 FPS. GLBoom uses your GPU, so it manages to render a lot faster.

 

As for why your framerate goes down specifically when facing a wall, I have no idea. Maybe try lowering the resolution and see if that helps.