Question [Q] Smoothest & fastest rom - need some help

Hello guys. I know that there is no "best rom" and I should check them all but this time I can't do it. I want to make my friend's Wildfire S 2012 smoother and faster than it is on stock as much as possible and I won't be able to play with it a lot so I really need your help. I am looking for pretty stable & smooth & new & fast & clear & simple ROM. He would be using it for making calls, messages, photos and undemanding games like tetris. There is no need for USB/WIFI Tethering, ART, themes etc. I was thinking about [ROM][4.4.3][ViPER]WFSY11.0-WEEKLY[V3.0][OTA][FAST] and [CM10.1][V!PER]WFSY10.1[KK][OTA][1.5-KKEgg]. What do you guys think? Or maybe something older?

I would be grateful for seeing your answers.
Best regards and thanks for any help.