Does HBO make porn?
Again, if you think that caching of static sources reduces whatever, then use a CDN. If the load goes to high for dynamically generated content keep the cache always warmed. However, the cache crawlers offered by LiteSpeed are lame ducks and cause a relatively high server load. You should therefore look for alternative solutions. With LiteSpeed Web ADC you also have the option of distributing the high load, but this only makes sense if you operate more than 1 server.
I admit, I've not read much about the crawler, so I need to learn more bout it. I turned it on reflexively but maybe it's not optimal for us.