Wifi connection is slow and unreliable

Hey all. I’m running the latest stable kernel (5.10.7-3), and for a few weeks now, I’ve been experiencing an issue where my connection over wifi has been very slow and unstable. This issue persists across restarts, affects all browsers as well as the terminal, and is still present if I use the LTS kernel (5.4) as well.

Notably this issue doesn’t occur on my live USB, which is Manjaro XFCE 20.2.

See here for my network info: https://i.vgy.me/h4e3dJ.jpg

(Sorry it’s not a copy-paste; it takes ages to pull up a webpage when my wifi speed is a solid ~50kb/s, so I’m doing this on mobile.)

Any assistance would be appreciated. Here’s what I have tried:

  • Restarting
  • Full system upgrade
  • Reinstalling linux510-broadcom-wl

Your don’t have a broadcom device.