I haven't had that many dropped games, but the lag has been terrible lately. I daresay the lag in IGAU is as bad as the lag in MK9, meaning that IGAU is unplayable online. There are random lag spikes in a lot of my matches and my inputs are delayed by almost 3 seconds. I don't have issues in any other game I play unless I foolishly accept a match from someone with few bars.
NRS needs to fix the netcode, although I doubt they will. If NRS couldn't be bothered fixing MK9's netcode 2 years after the game came out, why would they fix IGAU's netcode within 2 months? Hell, adding region and connection filtering might help a lot. I'm in the US, so I don't want to be matched against someone that's overseas since playing a slideshow isn't fun for anyone.
What makes the netcode issue even more annoying is that ASW patched the netcode in Persona 4 Arena literally 2 days after the game was released. It's obvious that NRS cares more about pushing out broken DLC than about fixing the online component.