I am having the same issue. Perhaps you could enlighten me as to why I'm lagging on low settings with shadows turned off.
AMD Dual-Core Processor E-350
AMD Radeon HD 6310
4 GB DDR3 Memory
Note: I trip balls everywhere. Not just warzones although it gets way worse there.
tl:dr - People who think SWTOR is WoW and can therefore be run on toasters.
Really though, the 1.6ghz Dual Core and the dire integrated graphics are killing the game - I run this game with a Q6600 @ 3.4ghz and 2 GTX460s in SLI and I dont get perfect frames
System requirements state an AMD Athlon X2 4000+ or 2.0ghz Core 2 Duo is required (Minimum) - an E-350 is about the speed of a 1.2ghz Core 2 Duo I'd say, your lucky it even starts.
They also Say that a GFX Equal to a 7900GT or so is required with Shader model 3.0 and 256mb of VRAM. the 6310 is benching lower than a Mobile 7600GT...
Result, try every resolution possible, its not going to work. Sorry