1: We don't support older versions because they tend to have bugs that were fixed.
2: The audio lagging during slowdown was added because it was causing crash issues in hundreds of games and was not proper emulation to begin with.
3: No matter what build you have, you must use LLE audio in SMG for music to work anyway, so even if you did use it in 3.5, you'd still get the audio lagging on slowdown. And if you use HLE? SMG will freeze on Grand Stars. (Or was that Galaxy 2?)
2: The audio lagging during slowdown was added because it was causing crash issues in hundreds of games and was not proper emulation to begin with.
3: No matter what build you have, you must use LLE audio in SMG for music to work anyway, so even if you did use it in 3.5, you'd still get the audio lagging on slowdown. And if you use HLE? SMG will freeze on Grand Stars. (Or was that Galaxy 2?)