I recently switched from my OptiPlex 9020 running Catalina with Clover to Sonoma with OpenCore. However, Firefox is extremely slow (Brave seems fine, oddly), like it takes 20ish seconds to respond to anything (opening a new tab, clicking on anything, opening a menu etc). I've read around that since the iGPU isn't technically supported on Sonoma (I did run OCLP after install, but the issue persists), it might be due to Metal etc.
Could I throw in something like an RX 550 to fix the issue? I'm not entirely sure if the problem is the HD 4600, Sonoma, or firefox. I do have an RX550, but its the Lexa variant, so I would need to spoof it. I have read reports on this sub that some were successful in doing that. Any thoughts / suggestions?
Specs: Optiplex 9020 SFF i7-4770 16GB RAM ADATA SU800 256GB SSD
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