What is going on here?
This warning indicates that either your DOM (web page) is very large and you have:
- lots of styles being applied to your page
- lots of web fonts — many of which could be web font icon sets
Each of those reasons individually or combined can contributed to the length of the main-thread work.
How to Address
If you are still getting this warning after Pegasaas Accelerator WP has optimized your pages, then it means that there are intrinsic features of your page that cannot be optimized further but are still more than a fast page would contain.
The only solution to this would be to remove plugins or components from your pages that may be contributing to either:
- excessive style rendering
- excessive font loading