What version of Videopad is being used? Here is the latest. For licensed users upgrades are free for up to six months from purchase date. After that, VP will continue to fully function but a fee will be required in order to register the newest. Retain your old install file and registration info.
File size and format can make a difference in loading times. When you begin a project, click OPTIONS | DISK tab and Clear Unused Cache Files - for a clean start.