Performance/optimization issue on powerful PC (Red Dead Redemption 2)

Fellow gamers, all the best.
In general, the following question worries me: there is an asus rog strix g513qy-hf002t laptop. Processor ryzen 5900hx 8 cores at 3.3GHz. Video card radeon RX 6800M memory 12GB. RAM (was) 16GB.
I bought the game, launched it in anticipation of something very good and ... terrible FPS drawdowns. Not that on ultra, but even on elementary high settings. It's simply impossible to play. I thought it was all about the RAM and its timings. I got it with timings a little faster and at the same time increased the volume to 32GB. But absolutely nothing has changed. In the graphics settings, the load on the video card is indicated by less than half of its memory. Apparently, it's not about her either.
Perhaps, of course, I don’t understand something and I’m blunting somewhere. But still, it's kind of a shame that a 170k PC can't run the game at normal high settings, not to mention ultra. Yes, even on the middle ones there are friezes. I don't know what to think anymore. Is there a problem in the laptop, or, nevertheless, optimization has not been delivered to rdr2 for several years.
Tell the unknowing, please, what's the matter. I sincerely hope for your help, I'm already tired of installing the game in the hope of changes and then demolishing it again, remaining disappointed.
PS Could it be a problem with windows 11?