Share specific examples of software built from source works better for you than packages or pre-built binaries
Removed
COSMIC Alpha 2
In-progress COSMIC apps: terminal, file manager, text editor, and settings
cosmic-randr: utility for displaying and configuring display outputs on Wayland
That just depends on your use case. I'd imagine you'd only get 5-15% performance difference. Choice of programming language and the quality of the code makes a bigger impact on performance. Case in point, Rust's png library is 1.8x faster than the C libpng system library. Of course, only Rust applications benefit from that, unless the C libpng maintainers decide to adopt Rust's png library as their implementation.