I got myself into the mode of building loads of wheatfields for my farms, as I don't want to look back and intend never to take care of them until they get depleted.
Wheatfields are really cheap to build, don't required workers or upgrades, so why build them for over a minute compared to other buildings like wells, which require less time then wheatfields?
With the building limit of three at a time to make desicison, I think farms should be built alot more quicker as they are cheap and don't require the assets compared to wells.
I do the same with wells, but it's more fair that that left alone because this structure requires workers and be upgraded as these structures to produce the goods alot more quicker.
My suggestion: Build wheatfields alot quicker by reducing building time for around approx 30 seconds.