Good afternoon. Could you please provide the specs of your computer and a screenshot of the task manager. That way I will be able to identify the problem and solve it.
Thank you for letting me know about this. It's really weird. I will try to solve this problem. For now, you can download the demo of the first chapter directly - https://www.mediafire.com/file/asz4uju36tk8d9q/WIN.zip/file