Need some help with a technical issue

So I want to play the campaign again for nostalgia's sake. I have the unofficial 1.42c patch installed. Anyway, the game plays fine except for massive framerate drops. One second the game could be running at 200+ FPS and the next second it will drop to 30 or lower if I look in the wrong corner of a hallway. This shouldn't be an issue seeing as I play Quake Live a lot (another Q3 engine game of course) and that game runs absolutely flawlessly capped at 125 FPS.

I've updated my drivers to no avail. Searched all over the Steam forums for a fix, none of those work. I really want to play this again but if the game can't run smooth it's too frustrating to play and I'll probably uninstall it. Any ideas?

My system specs:

* AMD R9 280X video card
* AMD FX-6300 Vishera CPU
* 16GB RAM
* ASUS M5A97 motherboard
* Windows 7 64-bit OS

The game is using outdated code (obviously) so you have to use a console command to help it run better with your advanced hardware.

This should fix it
Open up the console, and type

/r_primitives 2

Voila!

Thank you, works perfectly now!

You're welcome! Message me any time if you have any other issue