Do you mean the "red screen" bug? The one where after you reload with the button, the Eidolons screen is just red and the game doesn't accept any inputs anymore until you F5?
That's an annoying bug to be sure, but it happens less on older version of Chrome. Also, I think Caspiel causes it a lot, the game doesn't like handling her stacking debuff I guess.

Or do you mean just "Connecting..." for a very long period?
That's just lag, which will never go away. Nutaku won't spend their whale money on new servers, that'd be silly!