It is an average , but if we are talking about the everyday matters , it is still not less , the amount is still the same.
SegWit and Lightning did reduce some but at the same time when you try and send BTC from a normal address to these or vice versa , you actually have to pay the same :')
It does to a smaller extent, larger sums probably come from more sources than smaller sums, and the more inputs the higher the fee.
Still, you shouldn't be worrying about it, if you manually use the smallest fee (1 sat/B) you would always be paying a fee in cents. Whats the hurry? Check back tomorrow...
Just don't let the wallet decide the fee for you and you will never have to worry about "high fees" ever again. Besides, them wallets can be fooled easily by doing that network guessing at the wrong moment, such as when an exchange decides to move stuff around...
Just don't. 1 sat/B is good for most situations, plan ahead, most transactions don't need "Lightning".