Game optimisation for mobile?

Greetings,

I am having some issues with my game when I play them on mobile, the GUI is sometimes very weird especially when I use extra properties such as UIStroke(s), Corners etc. Is there a way to make everything look normal (like on PC)? Thanks.

Example: On PC the UIStroke line around the text is normal as I set it in the studio but on mobile it is 3x larger for no reason while the text size is completely normal as I set it.

What are the resolutions of the devices?

All devices* (all phones in existence)