Question about Radeon LE (Radeon DDR )

[VirginiaDonkey]

I have a Radeon LE 32mb(oc`d to 180/180) card in my system. When I play Unreal Tournament whenever I get into a room with a lot of people in it(6 or so), it appears that I lose frames as my screen seems to skip some parts of the scene. When I am alone, it is not a problem or when with 3 or 4 people. Is this due to just reaching the limit of my poor LE?

my rig
Duron 1gig@1.2
384 mb sdram @CL2
FIC AZ11E mobo
win98
4.32 4in1 drivers

Thanks in advance!