sRaidFrames was originally designed to replace the raid frames provided by CT_RaidAssist. They share the same look and feel of the original frames, but are highly optimized and even include extra features such as aggro highlighting and display of PVE critical abilities.
The main goal of sRaidFrames is to be just that, frames, nothing more; they do not deliver any other magic that you might know from CT_RaidAssist. This includes Decursing, Bossmods, Raid Status and Emergency Monitor. By not including these features, sRaidFrames will allow anyone the freedom to use whatever mod, if any, they prefer to do the above tasks.
Currently the frames provide a massive improvement in not only memory, but also FPS during raids, combined with oRA2 they are designed to help anyone completely replace CT_RaidAssist.
There is also a number of plugins that extend sRaidFrames' functionality:
sRaidFrames_Advanced - this adds custom layouts, advanced filtering and much more
Please note this project is no-longer actively maintained, if anyone wants to take over, please don't hesitate get in touch.