I was looking at different cards. Apparently p5000 and Tesla P6 are around $200 CAD. RTX 3000 is $130.
I got my Tesla M6 for $30 and I think RTX 3000 would make the most sense if the DX11 mystery gets resolved.
I also tried overlocking the display. But I get eye strain for anything above 60hz. Then I used my iPhone and slow motion camera, I can see the screen is actually flickering.
I also got an AX210 on the way to replace the old 6300agn.
I guess right now the biggest weakness of this laptop would be the 60hz non vrr display and the 2920xm. Not sure if there is anything else worth to upgrade.