

Aside from the other answers, no you can’t offload computations to memory. Memory stores data, it doesn’t compute.
The only way having more memory can possibly improve performance, is by having a cached copy of files so they don’t have to be fetched from disk, and applications potentially caching the results of heavy but reusable computations. (Unless you run out of memory and starts spilling over to disk, then more memory will make it fast again by avoiding swapping).
I mean I guess technically yes you could transcode into H264 into a tmpfs mount, and then play the H264, but you’re still not doing it faster and certainly not fast enough to watch in real time, you’re just decoding the AV1 well in advance before actually watching it.
Oh no, what a terrible thing to believe in live and let live and minding our own business. How dare we suggest we should treat everyone as equals and keep the government out of people’s private lives. The horror.