there is a nvidia riva128(m64,32mb) and a problem with quake3

i have got a nvidia riva128(m64,32mb) tnt2 video card and a quake3.When i play quake3 my view is choppy SO ÝTS NOT GOOD.and i set up OPEN GL and i downloaded latest drivers but i saw same thing and also i tried to turn down the resolution ÝF YOU ARE ÝNTERESTED ÝN THÝS SUBJECT Ý WÝLL BE HAPPY