I'm sorry to me it seems like your music is the issue not the program and I'll leave it at that. Like i said I have over 300GB of music (My uncle is a wedding DJ and gets most if not all of his music from me). I am very anal about my music collection and how its organized. i've never had any re-tagging issues ever. Is your music on an SD card, sounds like slow read speeds, like i said to a previous poster it could be that you need a firmware update that hasnt come down yet. I have 10 GB of music on my phone the initial loading of the songs into the app maybe took 1 min (everything is local on the phones HDD), after that everything has worked fine.
If the inability to uninstall games from the games hub makes you "throw this OS in the garbage" I feel for you. You are 100% the person who should not be an early adopter. Wait for your carrier to push this update to you, when the apps have been updated as well.
I have my own issues with this update, but overall I'm more happy then mad and I'm able to give the company/developers TIME to fix issues rather then ***** and moan the way you write your posts. Its one thing to say. I dont like that i have to go to the app list to uninstall games, its another to write. ZOMG NOW THIS OS IS A POS BECAUSE IT MIGHT TAKE ME 5 MORE SECONDS TO DO WHAT I WANTED TO DO! after you figure it out, then it wont even take you the 5 seconds.
1. The Lumia 920 does not have an SD slot.
2. I have 16.92 GB of music on my device (according to the phone).
3. Comparing wedding DJ music to my music isn't the best of moves. I'm guessing that music is almost entirely popular music that Xbox Music has in its library and has been on the radio over the years and so on. However, I have probably 5-10 artists in my library that likely aren't on Xbox Music, and that gives it a fit, as it'll try to turn that music into a something else if I don't stop it.
4. My music tagging issues are 100% the fault of Xbox Music. If I'm not on their "cloud," I'm 100% fine. It never had a problem on my Zune. It never had a problem on the Zune software. MusicBee handled it perfectly. My Droid Incredible had no issue. My device on GDR3 had no problem with it. My device on 8.1 has no issue, once I get it off of "the cloud."
5. You misread my statement. I never said that the OS should be in the garbage, I'm saying the way I use the OS is begin put in the garbage by these changes. If I break down my device usage, it's probably about like this:
60% Music
10% Games
10% Texting
8% Internet Searching
7% Internet Browsing
4% Calling
1% Other
The 8.1 update has made my experience with music, games, and Internet searching worse. That covers 78% of my device usage (very rough estimates). The texting's POTENTIALLY better (depends on how I adjust to the idea of swipe-based texting), so maybe 10% of my usage is improved. The rest is untouched, or 12%. So, if 78% is worse, 12% is unchanged, and 10% is MAYBE better, then the best-case scenario (if we weight this all evenly) would have the device at 68% worse.
Regardless, you decide to deal solely in absolutes, where as I do not. I've said that this ARE problems, and that the update IS bad. I've not said that they will ALWAYS be problems, or that this will ALWAYS be bad. It's the same thing as with the Xbox One. I made it clear that in its original state, I wasn't touching it. Everyone took that as my saying that I'd never get a One, but when it improved, I got it. As I said, if I had the chance, I'd be back on GDR3. I won't recommend updating the device to anyone I know. If it improves, then my opinion will change. However, I'm not going to make my opinion on the present based on an unforeseeable future.
So, as it stands, this update IS bad. It might not be bad when it officially releases, but I'm not going to say that the update is good now because it might be good later, given that we have 0 information on what will be changed by release. I mean, you obviously give them time, but when you take something that's good for 18 months and break it, it's hard to say "sure, I'll wait 6 more months to get what I had before."