low fps are low end machines trying to push a lot of polygons...My FPS never drop below 25 on a 1.3 amd, 512 megs, geforcec 3...with my settings at High Performance and 1024 res. If you fps are 1...you prolly have your settings to high, running out of free ram hitting your HD.
WW2OL has one problem, it is zoneless with a complete ground map. Infantry can see 2 kilometers with all the trees, bushes, roads , players.Tanks even further and ac can see forever;-)
This is not just ground clutter but a huge amount of polygons. You think it is a lack of programming skills?..guess no one else has such a playing field cause it is just too easy.
Getting out of vehicles requires..the the vehicle change from say a truck, with a body in it, (which is modeled and you fit in) to a infantry entity. It is a morphing and proving dificult to program. Rats want it and with server sharing is proving difficult. Then you have the problem of abadon vehicles using bandwidth and polygons. Lots of problems..like how long do the truck stay on the battlefield, when does it fade, what if someone is using it as cover. Lots of little online bandwidth intensive worms.
hardcase