It shouldn't take more than a few seconds. Sounds like the game can't detect your VRAM amount correctly. Are you on Windows or Linux? Do you have an iGPU alongside your 5070ti (e.g. laptop)?
Ah no, I have a desktop computer running on windows 11. When I checked through taskbar, it was using nearly or 100% of my VRAM. I've tried running it from scratch or running it as administrator just to see, but nothing changed strangely enough. I'm not super well versed in all this, so I can't really make heads or tails of it.