Slow on first load (Cookies)

Hello,

I am using the cookie option with JSON, initial page load on ANY page apart from ones that have any kind of prices on there are loading extremely fast.

Say I go to the homepage (loads fast), then go to any category page (loads fast).

However, for example, when someone visits the website for the first time from a category/product/any page that has pricing on it, the load takes 2-3 seconds (TTFB)

My guess is that happens due to the cookies, since if I enable Session option with AJAX it loads fast, but then another problem appears – ajax call takes approximately 2 seconds to load, meaning for visitors from US, they will see 2 seconds of EUR price instead of USD. Not only that but the AJAX call is so slow that if you are on a product page with variables, by the time you interact with the variation option dropdown – the prices will be stuck to EUR and will not update.

I am using Litespeed Cache, what can we do to fix this issue? I don’t mind using ajax but it’s extremely slow on ANY load, whereas cookie is only loading slow in the scenarios described above.