With my computer how so? pretty sure 2 9800 GT’s and a quad core should run source fine? never had any slow downs running any source game at absolute max.
Perhaps my words were a bit strong the guns also seem to “handle” poorly, the movement seems imprecise, those 3 things pretty much ruin it for me. I have tried repeatedly to get into it and go back to it every 6 months or so hoping I missed something the previous times. I love the HL universe and really wish there was a multiplayer experience I could enjoy, but HL2DM seemingly isn’t it!