How big should CSS be for a site to load quickly?

Question

css

I bought a Canvas template on Themeforest ( https://themeforest.net/item/canvas-the-multipurpo...
It has almost 300,000 CSS characters, isn't it too big?
I'm afraid that the site on this template will take a long time to load for users.
Or is this the normal size?
I have little experience yet.
If someone has worked with this template, please share your thoughts.
Should I continue to work with it or is it worth looking for another one?

Answer 1

Normal size.

Answer 2

To be fast, you need to correctly distribute the loading of styles and remember to cache on the client side:
1. Styles of the main markup grid (which is inline: critical) - <=2kb
2. All other styles (those below before the body) - any .
Recommendations from Google: here
Divide (if it is not already done in the template itself) and everything will be OK.