What's stupid is that it only let's you perform one action at a time. Even if it were so unbearably slow as it currently is, they should at least compensate and let you select a whole range of items to put into your retainer, and then process it in bulk, rather than processing it slowly one at a time, clicking on something, waiting 30 seconds for it to respond, then moving on to your next item of interest. It's honestly an infuriating procedure, still to this day. You'd think we'd be used to it by now.

I'm at 198/200 on my character and only around 50/200 in each retainer, and the reason is I "C.B.F" going through that whole ordeal every other day.