Quality of Videodemos

Hi all, I’m recently working with Captivate and tried recording some videodemos but I was a little bit disappointed about the quality. So I tried to improve the quality by looking at the presettings and the settings for publishing. All I could find for videodemos in the presettings was the Video Color Mode. In the publishing settings I experimented with the settings but the results were still unsatisfying. Is there any chance to improve the quality of videodemos while recording?