Search...then d/load and try...
Its all preference...read the threads...and get a feel. A ROM may feel fast to me but it might seem sluggish to you...
do you want loaded? Or Clean? 6.1 or 6.5? TF3D from original TP or TF3D2 from Rhodium? OR you want to ditch TF3D altogether and run SPB Mobile Shell...
these are all questions that only you can answer...
do your research...and just pick one