anyone else concerned about up coming skin tone update and game performance?

I don't think it will impact performance that much, I have not noticed any slowdown when using cc skins which are more detailed than maxis skins but who knows...

I'm not going to download the update when it releases because the timing is pretty bad, it's too close to the holidays so both mod creators and the developers will be busy with other things in case things need to be patched or updated.