Windows Lag in the character customization screen! Leading to the not responding screen to show up.

So while trying to create a new Stardew valley world I tried to change the shirt which made the screen freeze for a couple of seconds but when I try changing the hair the screen didn't freeze and then when I was done customizing I pressed ok then that made the screen freeze and then the not responding screen showed up I closed the program then I booted up the game again then the same thing happened again I looked for solutions online I didn't find anything useful please help me. Also when opening the game steam says its running but it takes almost 3 minutes to actually show the game.
 
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