The fan survey is related to how many tickets you sell, as well as your performance in the last few games -particularly the most recent one which is typically a road game. So beating your rival, doing well in TV games (sorry), etc. all matter.
The lower cost seats respond more heavily to record, but there also build out really fast since their cheap so I'm not sure what is the right way to build them out. You should also fiddle with the price too.
I have my prices set pretty low and my arena attendance frequently sells 12k in bleachers somewhat regularly, but even at my really low prices I struggle to sell more than 2.2k lower tier, I cap out and sell out of the courtside and its hard to sell more than 25-26 luxury seats. I've paused in arena building for now since if you look at upper league teams in the nbbl they have much more lower tier seats and there is a cap in the total number of people that can attend (something like 22k?) so I don't want to overbuild them .