The settled best practice among the hot VWs since the 1960s is to downsize the front tires. Cal Look drag racers use 135/15s and 185/15s in back. I used 145s/165s and found that it was good for 2-3mph top speed. Steering (tracking) improved, ride was unaffected. The Achilles heel is braking. The speedometer is affected but not the overall drive ratio.
Front/rear tire pressures were unbalanced to accommodate the rearward weight bias. On the panel van I had 185/14s on front and 215/15s on the back.