@ldj72 OK, then switch to an other theme, disable plugins and find the cause. Also both webpagetest.org and GTMetrix provide in depth explations of the cause. Check them and see what is wrong.
Well, the issue is that the cache system is not well managed by wpForo. Maybe you have to think about letting pro cache plugins manage cache politics. i.e, Wp rocket, for example.
My blog rocks with Cloudflare and WProcket, and the blog page is heavier (image, script, CSS, etc.) than the forum page.
@ldj72 As i said, use GT Metrix and webpagetest.org inner/details explanations to find what is slowing you down.
Caching plugins CAN'T handle wpForo caching, because they "don't know" wpForo. wpForo doesn't use custom post but has its own structure. So do not expect ANY changes in that.
Can you replicate that issue with mobile HERE, in this forum?
I did the test with this site https://wpforo.com/community/ and on mobile, the KPIs are not very good too.
For desktop
Checking my forum home, mobile, with pagespeed insights, i got a 30 speed index.
Disabling my adsense ads plugin totally, i went to 61 speed index. Go figure how reliable the speed meter is
🙂
Google penalize speed but slowdown come from his Adsense script/code/api. I don't use analytics, but imagine if i did. I would get a 10 speed metering.