https://bugs.winehq.org/show_bug.cgi?id=30639
--- Comment #49 from Ruslan Kabatsayev b7.10110111@gmail.com --- I noticed that if I enable _any_ nonzero speed optimization in CFLAGS, even -O1 or -Og, I get drastic performance improvement in GTASA, although the sound sometimes still appears choppy. But any attempt to use -msse3, -march=native or -O3 (or combinations thereof) gives small if any improvement. The same picture is when I only recompile mixer.c adding optimization options instead of whole Wine source.
It seems strange that by default Wine doesn't enable any optimizations at all. (Tested on wine-3.1-286-g389c3ad.)