Anyone else getting awful performance after upgrading to system release e2.1.1?

Webpages take several tries to load (have to keep hitting reload until they come up)
and throughput is down to half of what is was.

haven’t had any issues here. be sure to follow the release notes on the backoff for the uplink. this upgrade actually helped significantly with packet loss on the uplink portion and with voip latency times/loss. double check if the extended range settings is enabled as that will reduce overall throughput on the AP. but should not affect webpage speed unless the ap is overloaded.