Car & Driver measured MPG and 0-60 times for wheel sizes 15 through 19 on a test VW Golf.
Going from 15" to 19" wheels resulted in a
https://www.caranddriver.com/features/a15130598/upsized-wheels-tires/
Going from 15" to 19" wheels resulted in a
10% drop in fuel economy and a
4% degradation in 0-to-60-mph acceleration
They felt 17" wheels are the sweet spot. Great article:4% degradation in 0-to-60-mph acceleration
https://www.caranddriver.com/features/a15130598/upsized-wheels-tires/