Some suggested solutiosn can be found here: [Combined] Game runs unplayable bad. (Performance issue)
But overall it’s an optimization issue that needs to be done from Moon’s side, though luckily we are heading towards 1.0 so a lot of that will be done for the official release!
Thanks @amirhossein, I have not much else to suggest right now but those details and stats will help the team for ironing such issues like you experienced out!
Silas