I'm using Samsung Galaxy Grand Duos GT - I9082 (rooted, but using Stock Rom)
Which tweaks/mods are for my phone?
How many of them can be installed?
I'm already flashed both Pure Performance X and Pimp My Rom (yet not seen any changes; still phone is lagging).
If your phone have laggs ( maybe the "illness" of Touchwiz Samsung ...the "heavy" rom very known ,i think ...) you can go to your devise section here or others android comunnauties around the world for to see alternatives customs roms (cm for example if existing ) ........or reflash a clean instal of your stock ( without tweaks ,mods ...!!! )