Speed Of Program?

Hi, im back I noticed FF is getting slower the more filters i add/download or at least it seems that way so what i would like to see is a fast load no matter how big the library of filters you have is, one other is on load it renders the last selected filter with the default image, couldn't it store that info in a temp file if its already been rendered before? Maybe if not then add a option somewhere to not render on load so it will only render once you actually select a filter from the library, sorry if my ideas are no good, i have been away for a while also but have been checking every now and then the new filters and forum posts, oh and today i just got another reward point (3 total) so i used those now