Hah!
My players would love to hear that.
As I look around at my own experience, and then the experience relayed through the various storyhours, I see that the average number of encounters per day is close to 3.
You imply you have more. I would urge you to reconcider that assumption. At the next several games, count how many encounters there are per day - encounters in which magic is used. If the
average is very much above 3, I shall be surprised - and stand corrected.
BTW: the game designers also used "about 3 encounters per day" as a design parameter. The EL chart and the surrounding text says as much.