i do a lot of filming of cars racing at night. sometimes the track has a low light. i have found that the low light mode makes things slow down and not look right.

i tryed the sports mode and that works great, yet its dark.

what shutter should i use? any other tips?

Try 1/60th shutter and then adjust your exposure using the button on the back.

You could also experiment with different white balance settings.

After that, try using the color correcting tools in your NLE