TL;DR
Flashed Vbios from another card with no issues, saw an immediate massive increase in performance.
I purchased an MSI 4070 Super Ventus 2x mainly due to it being smaller, i didn't realise i was buying MSI's budget card. Recently the stalling and stuttering had got to the point i needed to find out WHY.
Installed HWInfo64, played some cyberpunk with PT on and ultra GFX i could see the GPU was throttling because of the 200w power limit. I needed more power.
It's been some years since i had messed with VGA Bios, last i believe was an 8800GTX back in the "But will it run Crysis days" so i began on Reddit, very Doom and Gloom, a lot of people saying "don't do it" or "i messed up" but i wasn't putting up with this power cap without trying first. So onwards.
Next was Techguru, no joy there, no modded bios for this card, very few owner uploads. For the next 48 hours i looked at pretty much every MSI 4070S card in their lineup, checking the PCB was similar, the output ports matched, i then noticed the MSI 4070S Gaming x Slim. Same ports, same layout and size but with 260w.
Set up my handheld to connect remotely in case of a filed flash, then i can remote in to windows and flash back to stock, i don't have an iGpu, my system is a custom loop with hardlines so swapping CPU wasn't really a viable option. Then i flashed..
Reboot, seems like its all good, GPUz couldn't tell what card i had but there it was, 260w limit. Immediately loaded up Steel Nomad. The best score i could achieve before flashing was 4483, new vbios that went straight up to 4800+, with some extra fine tuning i'm now sitting at 5133.
Fully water-cooled, as i mentioned before i chose this card because of the size not realising how much it was bottom tier, couldn't find a waterblock but the Ventus x3 4070ti block fits perfectly.