After intensive testing for a couple months, I have reahed to the final conclusion that it is not worth the hassle to remove anything else, except FOD packages. By removing regular Windows features (which removal is in many cases totally bugged), you only gain some disk space, but ZERO performance. Use UUP Dump ISO creation tool to exclude appx packages you don't need. You can also exclude Winre.wim and Edge browser. And that's the most optimal way to create Windows installation image.