Yes .. but that is very slow .. 1 second rule ! If page didn't load in 2 seconds ..it might even never load ..
Discussion
There should be some caching, maybe a cron job that runs every 5minutes and refreshes the cache, so the site loads instantly, but has 5minute old data max. You could reduce the cron job to even less...
Doesn't work .. I have been using npub.pro for almost an year .. it is great ..but not fast enough