..I had read somewhere it might be a little heavy.
Hah I said that, but may not be the case. It works slow for me on my laptop, but hiper fluently on my win 7 desktop pc. So far you're the only one seeing it so slow (and me, but I'm convinced now that my win 10 laptop is at fault.. I know why..).
Anyway, try to disable background cover on File info view, that's a big cover (1000 x 1000 px) changing every now and then and it can be the cause of some slow downs.