As Lewis explained in his post qualy interview (but without the specific numbers that are given in this article):
"Through Turns 6/7/8 is where he suffered the biggest loss to Max Verstappen’s Red Bull and Charles Leclerc’s Ferrari. Verstappen was flat through there, Leclerc virtually so. But Hamilton was down to 62% throttle (Russell at 57%) and going through at 155mph compared to the 166mph of the Red Bull and Ferrari. "
Crazy that there is such a difference that the RB and Ferrari can go flat and the Merc drivers have to go at ~60% throttle, and that they can go through 11mph faster than the Merc.