When fragging a lot of items at once, the page can load extremely slow for those with slower connection/computers, so here's my suggestion: How about putting a single crystal image and beside it the number generated?

Like this:

Sounds like a good idea to me. Not sure if it would speed things up, but in any case it would still be a nicer presentation.

That's a good idea. However, it's not your connection or computer. Item processing is on their end, and tends to be slow during events when candy hearts and flowers get generated and moved. I wish the holiday items and currencies can be automatically banked and withdrawn whenever we wish, so there's no need to quickstock or cash them in which moves them a second time, clogging the servers.

I like seeing all the crystals. Users used to complain when you couldn't. I think one of the reasons you can see them now is because you can decide whether or not to bank them or sell/trade them and this didn't used to be possible?

I like that the fragmentizer now will take huge batches of items. Again, users used to complain that you couldn't.

I fragmentize all the time and while it's worse when folks are using currency banks, (today is both candy hearts and wizard tokens) but that's not really it. It's a side-effect of the way that it works nowadays in that it doesn't require you to fragmentize small batches but will take as many items as you can dump into it. It's also a side-effect of protection of certain items from being fragmentized by accident and the increased number of rarities that it needs to check before even starting operation. People were fragmentizing so many items so often that this was clunky, and breaking the feature, and taking forever anyways. It really is faster this way!

I'd like this!

I don't think loading speed will be impacted much; along with all the items you're fragging, you are loading only one humming power crystal image, it's just repeated many times. All the fragging work + the lag that comes with it is server-side. I'm on a solid gaming computer with a decent internet connection, but I still get bad lag when fragging 200+ items. When fragging more than 300 items, I've sometimes had 50X errors. But for the sheer sake of condensing the fragging result page, this would be great. I really don't need to see the 600+ individual crystal images after I frag my shop junk. It just stretches the page when it really doesn't need to.

I know what I'm going to get from fragging. I don't need to see every single item image for the 100+ crystals I get back.

Seeing which items you've fragged is good! But the results could really do with some condensing.