It's not even that hard, you just need to use a fast pre-compiled programming language like C, C++, Rust, Zig, Go, etc. And stop writing webapps. Everyone who uses electron should have their computer forcefully downgraded to a mid-range 2012 laptop.

And by old shit I mean like 2012-2020 level hardware. These computers aren't even bad, but big corpo software just sucks balls nowadays. I think we as indie devs should (continue to) write well performing software that works on every PC you throw at it