No problems here. All my clients are still online after 3 hours. Might be just your connection or your device. A little laggy and slow loading up for some reason but I find it ok.
No issues with that unless i run more than 2-3 hours on the same char. If it gets laggy, i usually restart.
I need that 100x speed to run all my chars in a reasonable amount of time daily otherwise it will take probably 3x of the time i use now. Which is something like 2 hours+
You are right. I have also never been banned with my 56 chars all 100x speed.
It is the only way i can do to complete all daily quests within each day.
Daily quests takes like 10-15 minutes per char and i run all accounts concurrently.