“Performant” is not a word
boulter.com
boulter.com
Of course, the post basically goes on to say you should just keep using the word, so no ranting required.
I suggest using the -y suffix for the adjective form and -ant for the noun form. Then you can say the performant is performy, or performier than before.
http://english.stackexchange.com/questions/38945/what-is-wro...