I have a problem whenever I enter a very large or heavy realm, my cubic castles do not respond and if I try to open another page of cubic castles or I try to shut down by clicking the "Start" button, it will lock my computer. When this happens, I can not move anything, much less the mouse, and for me to turn off the computer, I will have to use the button outside the settings.
I would like you to help me rule out this error so that I could log into my account without having to worry about a very large / heavy realm
Thanks for reading.
below is my video showing what's happening.
where I marked in red, in English it means "Cubic (not responding)"