[0.9.3] Game runs at low FPS in all areas on high-end specs

#1
The subject says it all; (This is probably the wrong place to post it)

SCP: Containment Breach appears to run at a low framerate, an average of 22 FPS at all times (Even on the main menu) for me on my new computer.

My system specs:
AMD Radeon R7 240 graphics card
Intel Core i5 CPU with 3.10 GHZ
Windows 8.1

I have SCP:CB running in fullscreen at 1920x1080.
Image
So does my mouth at dinner time.

Re: [0.9.3] Game runs at low FPS in all areas on high-end sp

#3
Windows XP Service Pack 3 Compatibility? I'm using an HP Pavillion laptop with Windows 7 and low-end specs (1.8 ghz dual core AMD) and it works fine enough for me.
SCP: Eric Breach nanomod maker (if anyone wants to revamp it be my guest, as it is now defunct)
Fan of Doctor Who, Dirk Gently's Holistic Detective Agency, Sleepy Hollow, Person of Interest, Happy (2017) and Silicon Valley. And also MCU films.