You seem to kmow what you’re doing. ??
Though I fear that apart from cycles=max 125%, and some frameskip, there isn’t much you can do to improve performance.
What device/cpu do you have? And how’s performance in other Win95 games, like e.g. Diablo, or Red Alert?
For Baldur’s Gate, I’d highly recommend the native Android port. It’s amazing, a fantastic adaption to touch screen devices.