The reason for the lag is a curve optimization Star Wars: Battlefront (under different hardware and optimization of the whole game, because of this and there are the brakes, even on high-end models of computers.
Usually developers error rule themselves fans of the game, now there is a Patch Fix that solves the problem of optimization in Star Wars: Battlefront and problems with lags icchezayut. If you have a PC powerful enough for a normal game.
Download: Star Wars Battlefront PatchFIX v.1.03
Installation: Follow the instructions of the installer, specify the folder with Star Wars: Battlefront
List of fixes:
Fixed optimization Star Wars: Battlefront, resulting in significantly increased FPS, missing brakes and hang of the game.
Fixed conflict games and drivers from causing the game simply crashed.
P.S. Installing the fix does not require replacement tablets, suitable for any version of the game, because Do not touch gameplay, but only composes the game engine.