Hey. So I have a weird problem with my laptop lately.
Laptop is: https://www.amazon.com/Acer-Aspire-i.../dp/B075FLBJV7
No modifications except a 750GB WD Black HDD I added for storage.
This laptop used to be able to run games like CSGO just fine, no problems. Lately, however, I noticed some significant jitters in my FPS. I just went with it, because I thought maybe it was just because I was used to 144hz and 60 felt jittery by comparison. Until I unplugged the laptop to take it outside for a smoke and everything ran perfectly smoothly.
I looked through all my power settings that I can find, made sure everything was on high performance; no change. I reset the defaults on the power settings; no change.
The difference is instant, so it's not an overheating issue. The exact moment I unplug, my frame rate stabilizes at about 120-140. The moment I plug it in, it spikes, literally every other frame, seemingly randomly between 40 and 200. I recorded it on my Galaxy S9's "super slow motion" video capture and manually recorded the frame rates as they changed and put them in a spreadsheet. I've attached a screenshot.
Anyone have any ideas on how I might be able to fix this? I bought this laptop specifically to be a light gaming portable machine, but it's practically unplayable when plugged in.