Performance of Discuz

Hey,

I've been interested in using this comment system for the last 3 years as an alternative to Disqus. I often see it listed as a good alternative, with lazy loading/performance features. But every time i've done a speed test in the last 3 years it’s at least 5.3 seconds of load time: https://tools.pingdom.com/#5ae1eacc8d000000

Is there something I'm missing? It feels like it'll add too much weight/load and ajax calls to the loadtime which I've tried to keep on my page to under 1 second (thanks to the native comments).

Thank you.

Warmly,

W.D