Litespeed plugin temporarily causes issue to my websites appearance on 1st load

Hi,

When my website is opened in a browser for the first time it looks wrong for around 0.5 seconds, then it corrects its self, and its appearance changes to what it should be.

For example, wrong website colors and wrong text font are shown initially for around 0.5 seconds, then they are replaced by the correct website colors and text fonts.

I only get this issue when the Litespeed plugin is enabled.

What setting on the Litespeed plugin is causing this issue and how can I fix it?

Thanks