There are levels to caring about speed, and this could easily cause issues at a level above what they should, being a fairly low level detail (memory allocation

There are levels to caring about speed, and this could easily cause issues at a level above what they should, being a fairly low level detail (memory allocations). I work on a Python application where we don't care about memory allocations (we care about the number of database queries for example). Using musl may make memory allocations expensive enough (as they are 50% slower) that we may have to start paying attention to this in some areas of our code.