Then I guess we have no idea what you want.
Well I thought you had a very good idea of what I wanted, as your first answer was a good attempt at resolving exactly what I wanted to do, except that it needs to happen before Bridge loads the files and not after, which again I thought you had also understood, by the phrasing of your answer.
I never explained "why" I wanted to do what I wanted to do, as that didn't seem necessary, but then I also assumed that there would be an easy answer, and it was just me missing the obvious.
The indexing, building of previews and flat view of multiple folders, searching, and XMP editing tools make Bridge more like a DAM than a browser, and maybe FRV can do all these things, but its not obvious to me that it can. If it can, that would be great.
I don't use Bridge that often, but have always been impressed by its speed, and versatility, and as I often want to quickly open my images to browse or search for images, I thought I would investigate it a bit further. I already have and use several cataloguing tools (Lightroom, Capture One, Neofinder and Media Pro), but they all have some sort of problem, which prevents any one of them being a solution I am happy with. And, as Bridge was sat there, I decided to see how well it might work for me.
And indeed, once all the files are loaded, Bridge is still very fast (not as fast as Media Pro), but as it is, the long long time to load a large number of previews, means it's no improvement in "overall" speed than the options I am already using.
Cheers,
Graham