It may run a bit slower for you but in my case, i see no hits in performance.
For the error, if it runs without any error and loads the uncensored patch at first load (before you actually get in game), i wouldn't worry about the error/warning afterward. it just the game runs this way and sometime will makes "error" but reality there isn't any otherwise game would have crashed.
For the size wise, yes it is entire game including the patch to avoid any mistake or confusion how to use the patch, the original size is roughly 1.01GB, that is including the patch, then i used 7zip and compressed it down to roughly 697MB. meaning you do nothing except extract this game and run it.
About the anus part, i believe the patch didn't do the anus or the patch didn't do it correctly for anus, if you checked some previous post, some people said the same thing, anus isn't uncensored but otherwise everything else from my understanding should be uncensored. this is something i cant do because i didn't do any work in uncensoring the game. i just took their patch made it work and zipped it all in 1 to simplify for anyone else that wanted uncensored without figuring out how to do patch properly.
