You’re making a conscious trade off, which is better than most of the heavy apps out there, because they are slow and heavy. It would be interesting to document your decision making in some kind of blog post, especially if there is real hard data behind the decisions. That’s where the engineering lies.

RCT and RTC2 are pinnacles of optimization but I understand why we don’t code in assembly anymore. Still, C++ with a little care can still be very fast.