Solved my issue. I’m still not sure how it happened, but my TASystemSettings.ini file located in …\Documents\My Games\Rocket League\TAGame\Config had a bad setting that couldn’t be corrected from within the in-game menu. I deleted the file and restarted Rocket League and everything finally looks how it should.
Before the problem began, the frame rate and head tracking was terrible when Vorpx was running. I adjusted the graphics settings in Rocket League while I was using Vorpx at the same time to try to increase the performance, but I could never get it to run well enough. That’s when I started to encounter the weird jagged graphics issue.
Wish I could get Vorpx to run smooth enough though. I figured a GTX 1070 and a 4GHZ 8-core cpu with 16GB of RAM would perform well enough for a game like Rocket League.