Audio randomly working on game startup or not - need to relaunch the game until it works to play with audio. May be fixable with extra tinkering

Game speed (which also controls mouse scrolling fluidity/speed) is broken, but this also occured on non-ancient windows OS for me (windows 98 being the last one where the game worked 100% as intended). Setting "game speed" in game options to slow and mving speed slider to around 85-90% makes it work perfectly for me (optimal values might depend on hardware speed). Unfortunately the speed settings (slow/fast) in main menu options are apparently not used by the game when starting gameplay, so need to swap it for each gameplay. You can keep the speed "fast" and adjust slider more aggressively down, but animations will be ugly and map scrolling will be wonky.