Speed Up Loading Page By Splitting The Css

can you add 2 different css , one for mobile and one for desktops where

if device mobile load mobile css

if device desktop load desktop css

detect device and load css very simple

this could reduce css up to 50%

i see a lot of css files are loaded and not used.

Hello,

Please check the PM, we have sent you the message.

Best regards,

Alt-team.

Anyone found a solution for CSS and JS so websites can load faster on mobile ?