Don,
You have given zero information that would enable anyone to help you, other than your moving text is not smoothly. That could be caused by a host of reasons. At a minimum, you need to provide project settings–frame size, frame rate, etc. Render settings–codec, frame size, frame rate, etc. And finally, how do you know this? Preview? Rendered file? Posting a YT video of your “problem” would be extremely useful, as well as screen shots of your project and render settings. There’s a good chance that you are simply animating your text too quickly for the frame rate you’ve selected so that there is judder. However, until you provide more information, don’t expect a lot of answers, except guesses.
wwaag