As i said the force cache will do just that it will cache all the related images to the launchbox/images/cache folder this makes retrieving said images much quicker than just scrolling through the lists, as this is a permanent hdd cache it will stay the same even after a reboot. This is a very difficult thing to troubleshoot as two people with exactly the same specs can have varying performance, and we don't know why that is the case. Also what one person finds to be slow another user may feel is completely acceptable speeds, which makes it even more difficult when comparing different systems or specs. Jason the developer works very hard to optimise the program on a regular basis and for the vast majority of people performance is very good. Then we have people with decent specs with which Bigbox should run perfectly fine saying it's slow and choppy and we just don't understand why that would be the case. As i said though if the force cache images doesn't improve things for you then email support@unbrokensoftware.com and ask for a refund, Jason is very good at refunding people who are genuinely having performance issues with the program.