Oh,
btw on the left of your timeline (I'm used to fcp, but I expect it is also in fce) you can set how you want your renders, if they are not there (I don't have the program in front of me) you should try your settings and look for render, then you can put those lower (if you want), when you playback, the quality is ******, but no worry, the end product perfect, it's only for render for playback.