There's a VERY easy thing about Twintania I'm gonna tell all of you.

Her divebomb timers client sided, and if you set her as your focus target, when she leaves the map it vanishes, but when she's back to sweep for a bomb the focus target appears right away, so the second you see her appear on you focus target window you run out then immediately back in.

I had the WORST time with that, but know this, even if you're lagging out, your games still sending the info, so if you move to dodge the dive bomb the server will recognize this, your client will just need to catch up with the data.