My performance with the pagespeedinsights scan is a 55 score

The site is super slow but I can't figure out why. I do have query monitor installed and its giving some of the above info but I have no idea what to do with it. Does anybody know?

My website crashes every other hour for an hour so down like 50% of the time UNLESS I have under attack mode on in Cloudflare which blocks bots. If I turn it off and the website crashes, it immediately comes back online a minute after turning it on.

I have about 1,000 real page views a day. However Cloudflare says for each day:

66,000 visitors

320,000 requests

7% Cached

6GB served

401MB Data Cached

Are these number normal? Is there a way to fix this without having under attack mode on 24/7? I feel like it annoys the viewers with that 5 second loading screen and also potentially effect google analytics.