Question: Is it possible to kill the same boss back to back by switching channels? Would be nice if it is.

Just checked, you can kill up to 9 MT-09's, mobs that take like half an hour to spawn, by swiching channels.

In ch.3 I have low ping but the mobs' movement kinda stutters.

Each channel has it's own mob spawn, as intended.

Fixed for the next update. The FPS Readout setting (the checkbox and the /fps command) is now saved with the rest of your settings, so it comes back on by itself after a refresh or re-login. It isn't in the live game yet, so please re-test after the next patch. On your other notes: each channel having its own boss spawn is intended, as Mark said. The ch.3 stutter is on our radar - ch.3 runs on a server in Singapore, so mob movement there can look choppier from far away even when your ping is low.

Now live: the FPS Readout setting is remembered after a refresh or re-login. Refresh the game to get the update.