Ok, I admit I was skeptical. I've been optimising slow WP websites on slow hosting for years. I've been through WP Rocket (my developer license ends in August), when that was too slow, I've tried Nitropack. I had to use Nitropack (US$21 per month and I pay in AU$ with a terrible conversion rate) to get decent speeds on this one site.

Tried BerqWP for the Nitropack site and I'm seriously amazed and so happy.

Without BerqWP (or any cache plugin), the site loads at about 10 secs for homepage with awful pagespeed scores and core web vitals.

WITH BerqWP, I got the following:

GTMetrix:
Performance = A 100%
Structure = A 99%
LCP = 540 ms
TBT = 0ms
CLS = 0
TTFB = 0.57ms
Fully loaded time: 1.3s

Pagespeed Insights Mobile:

Performance = A 98%
Accessibility = B 81%
Best Practices = A 93%
SEO = A 92%
LCP = 2.1 secs
CLS = 0.054 (Green)

I'll be replacing WP Rocket with as many tiers as possible.