Okay, this problem is making me very frustrated.

I downloaded Wolfenstein 3D from Steam. It worked with no problem. Later, I closed my laptop with the game running because I had to do something, believing that was safe. When I came back the game suddenly wasn't working right, so I turned it off and on. Now all of a sudden, the game is lagging like crazy and the sound is extremely choppy and sounds awful. Also, the title screen, when you choose between Wolfenstein 3D or Spear of Destiny, is flickering.

I tried restarting the game several times, didn't fix it. I restarted the computer several times, didn't fix it. I tried uninstalling the game and reinstalling it several times, didn't fix it.

I checked the internet for ways to fix it in the configuration file, but that didn't do any good. I know it worked no problem before, why is it suddenly not working now? Can closing my laptop really have damaged the game like that?

Please somebody, help me. I really want to play this game, but I don't know what to do anymore. Don't tell me to install any mods, I know it can work, it did that before.

if memory serves, you need to manually set the IRQ on your Sound Blaster

What is that and how do I do it? I have never played a DosBox game before so I'm not sure about these things.

I'd actually recommend ditching the Dosbox Steam ships with, and downloading DosBox-X or DosBox-Staging and using that instead.

You'll probably have to mess with the config file somewhat. If you want to play DOS games there's no way around that.

I actually figured it out, and the solution is so weird. As it turns out, if I play the game while the laptop is charging the game runs smooth. Playing the game without the charger makes it lag. No idea why this changes anything but hey, it works.

Because running a laptop on battery, by default, kicks it into power saving mode and throttles the processor.