I'm running the latest Firestorm, and I've narrowed the issue down to texture loading. Ever since the new "rendering subsystem" with the 6.6.2 codebase, If I cam around to areas where many people have unloaded textures, my framerate drops to a single frame every 3-5 seconds until the textures are loaded, making the viewer almost unusable to the point typing and moving are impossible. At times turning on transparency (CTRL-ALT-T) has actually caused such a long freeze-up (over 30 seconds) that my viewer crashed. This issue does not happen when I drop Avatar Complexity below 150,000... but over half the avatars are jellydolled. Vsync does not affect this whatsoever. This happens at all graphics levels, including the absolute lowest possible setting with all shading and atmospheric rendering off.
Please note that I did not have this issue AT ALL with 6.5.6.66221 whatsoever. The latest versions of the viewer with the "improved" rendering engine are what cause this. I am running an HP EliteDesk 800 from 2014 with a MSI GTX1650LP graphics card.
Needless to say, I'm quite upset 6.5.6.66221 was blocked. I suspect there is zero fix to this issue, which leaves my options as needlessly spending $1000s upgrading to a new system entirely, or simply no longer using SL. Is there a way to get LL to unblock just this one viewer? Or am I stuck with this problem until I upgrade my system?