Time to drop the lag! There is a new version of the viewer firestorm and has a great new feature. It's called "Performance Floater" or "Graphic Speed" button. <span style="color: #cccccc; font-family: 'open sans', Helvetica, Arial, Verdana, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 300; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #202020; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">
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What does it do, it can auto tune your settings so you get the target fps you want.  Is sure will trade off draw distance, render quality, but it works!
My advice is for RP there is no need more than 15 fps that's what games had run on for way too long. There is a option to leave it on working in a continuous way but that will keep changing things around, my advice is run it a bit and once you like things just click stop and tweak any settings you like. You can always run it again at any time!

Another cool feature is that if you click avatars nearby inside that window and check who takes more time in your own computer to render. The cherry comes that right click inspect will also show you anything they wear, so you can shop those things you like so much!

And another nice feature is you can also check at one glance your own avatar items rendering time. And pinpoint that if you earings take longer than your whole body to render then maybe you should wear another brand!

Release information of this new version of Firestorm Viewer

Download Page for Windows
How it works and how to add the button