As I described above, the optimization problem mostly lies with JavaScript, but in future versions I will continue to work on optimization
And I also wanted to ask about your computer characteristics? and how much FPS the game gives out while standing in the building at standard settings
this information would be very helpful in the development
And also, if you have an nvidia graphics card, then try to update its drivers if they are old, then the FPS in almost any game will be worse than with the newest drivers