502s are Cloudflare's 10 sec timeout. Some pages are genuinely slow and need to be improved (e.g. Tokens). Others have caching that speed them up after the first request (e.g. Feed).
We've made some improvements to speed up the site this year, but more are needed. Will continue to monitor and look for ways to increase performance.
I feel experience as well just loading the platform and open slow but nevertheless still the site was still open to use even the post day by day here was going down