I fish a lot of short sessions but that doesn’t necessarily mean that you are limiting your chances of catching.
Remember, generally speaking, an hour at dawn is preferable to three or four in the middle of the day at the height of summer.
It was the former that I had this morning, again mini-jigging on a pool in pursuit of perch.
You often get an impression early on what the session is going to be like and that was the case today.