Most of those setting look fine, however, there's no real reason to have "Disable Lighting" and "Disable Fog" checked. You can safely turn those two off.
Could you be more accurate about how your games look "choppy"? If it's a graphical problem, providing screenshots would help us to determine the cause. You said the games were "choppy", so I'm assuming it lags. You still haven't told us what speeds you're getting. However, some people describe their games as "choppy" when the screen appears to tear, in which case you should enable v-sync.
Could you be more accurate about how your games look "choppy"? If it's a graphical problem, providing screenshots would help us to determine the cause. You said the games were "choppy", so I'm assuming it lags. You still haven't told us what speeds you're getting. However, some people describe their games as "choppy" when the screen appears to tear, in which case you should enable v-sync.