Going right for more tables has never worked for me. I gradually moved up to 2, 3, 4... The fith one usually in the center of the screen, and 6 gets really tiny, so I guess that's as far as it will go on this monitor.
If you can't remember what the action was - who are the nutcampers, who are the stations... then you should consider playing less.
My personal comfort zone is 3 at the moment. This is where I can still remember individual player with relative ease.