Stuttery/Stuck Scroll Bug on casper theme


I just finished customizing the Casper theme and we noticed that if you try to scroll on mobile devices, the page gets “stuck” after the first scroll and only moves a very small amount and only starts behaving normally after the first swipe - this stuck behavior re-appears every now and then when you try to scroll again after reading some text.

This is the aforementioned site:
I am testing on a Pixel 2 XL but this issue reportedly also appears on iPhones
Here is a video of the bug:


Okay, I managed to fix it by removing all the overflow properties from html and body in the global.css file.