Screen glitches and flickers on OC 0.6.1 Catalina 10.15.6

Screen glitches and flickers on <a class='btn btn-link py-0' href='/p/opencore.html?id' target='_blank'>OpenCore</a> 0.6.1 <a class='btn-link text-<span class='badge badge-success'>Success</span>' href='/2020/12/install-macos-catalina-on-supported-pc.html'>Catalina</a> 10.15.6

Hey, it's me again, guy who can't get his act together in the Hackintosh scene.

Fortunately, I do have a working HackBook though! I have macOS Success' href='/2020/12/install-macos-catalina-on-supported-pc.html'>Catalina 10.15.6 using OpenCore 0.6.1. Almost everything worked fresh after install except trackpad, iServices, a glitchy headphone jack, and the reason I'm making this post: screen glitches.

While using my HackBook for a little while, there seems to be random points where the screen just turns off for a second or two (sometimes twice or three times in a row, such as when I'm writing this) and then comes back on. This isn't too annoying, but I'd prefer to have a fix for it.

Another visual glitch, however, is so much more annoying. I can't open either Discord or Chrome without having all kinds of screen distortion, tearing, and even the aforementioned flickering. It's frankly obnoxious and I experience these things until I quit the app causing the issue.

Has anybody else had this issue? I've seen a few people ask online, but that seemed to be an issue with the RTX 1080 (IIRC). Of course, I'll post my specs, but I'll also attach a photo of my EFI tree for any of you to see if anything in there is faulty. Thanks in advance!

Specs:
Make/Model: Dell Latitude E5540 (8GB DDR3)
CPU: Intel Core i5 4310U @ 2.00GHz (dual-core, Haswell)
Motherboard: Dell Inc. 0C1C28
Storage: 512GB SanDisk SDSSDH3512G (SATA (SSD))
Current OS: macOS Success' href='/2020/12/install-macos-catalina-on-supported-pc.html'>Catalina 10.15.6 (OpenCore version 0.6.1)

https://preview.redd.it/9urz1dbkyso51.png?width=1773&format=png&auto=webp&s=617e27de324760fe53cb985bf45f9a8ac9dbaded

Author: @FletchableYT