Autoload is a way of WordPress loading in settings for various plugins
Over time, the autoload size increases, mainly form plugins adding in their own options. The problem with that is that autoload loads on every page, front and backend. Autoload can increase to MB size – we’ve seen some 8MB. So that’s an additional 8MB of data loading in on every page.
Litespeed cache helpfully shows us the top 20 biggest autoload options. But to actually change an option form YES to NO, we need to go to phpMyAdmin and use the following statement (changing the table prefix from wp_ to what your install has):
SELECT option_name, length(option_value) AS option_value_length FROM wp_options WHERE autoload='yes' ORDER BY option_value_length DESC LIMIT 20;
