Running 8 on my PC, graphic cards choice?

Hello, /r/Tekken

I got myself a decent gaming PC and have been playing Tekken 8 ever since.

Processor: AMD Ryzen 9 7900X RAM 16 GB Graphics card: NVIDIA GeForce RTX 2060

I can run Tekken 8 just fine at maximum/ultra settings (there were some lags at times, but nothing too extreme once it got on for quite some time), but I am forced to put the resolution on 1920x1080 maximum.

I've been considering to buy a new graphics card, preferably either RTX 3000 series or RTX 4000 series. But they will cost me a lot, so I'm thinking of certain tweaks as alternatives. Like maybe changing Dedicated Video Memory via BIOS? Or setting things up in the GeForce experience?

So, can 2060 run on maximum value or should I get a new one? And if yes, is there some kind of tweaks I need to do after I get the graphics card or I can let it just go automatically? (I thought changing Dedicated Video Memory might do the trick, but I'm not sure on how it won't ruin my computer)

Thanks!