I'm going to add onto Tmepest's answer on lag. First, an example; X&Y, having run on the 3/2ds systems, runs on ~21 gbs of RAM. 3D models would be to extensive to put into this game, plus there are no 3D model rpg makers out there (from my knowledge). While Reborn CAN be run with 2gbs of RAM, I run it on 6gbs, and get pretty decent results. Another thing you could try is un-parking your cores. OSs typically "park" (actively not use cores) cores of a build to save power, but this creates problems in running CPU/GPU/RAM intensive games, i.e. massive rpgs, AAA fpss, etc. Youtube videos on it and see if it helps....I'm no programmer, but from having played in the competitive scene in the battlefield series, I do know a bit about computers....