@Homerkillio I assume you want your capture device source in some scene larger, and in some other scene smaller. To keep quality high, go to the scene where you want the source largest and set the desired best resolution in the device settings. This is probably the highest resolution the device supports.
In the scenes where you want the source smaller, resize the the frame so it has the desired smaller resolution. This will downscale the image with no quality lost. Keep an eye on the aspect ratio: fit is ok, because you keep the aspect ratio, but stretching isn't. If you stretch a source, the image becomes distored, because you enlarge or shrink it vertically differently than horizontally. Usually, if you pull the borders to resize, aspect ratio is preserved.
@FordmanGaming Add additional text boxes with the "Create new" option, not with the "Add existing" Option. With "Add existing" you create a reference to an existing text box, which enables you to have the same text box in multiple scenes. If you "Create new", you create a different text box which enables you to have many textboxes with all different content.