As @Zbip57 observed it's somewhat problematical to draw conclusions from the motor speed data. Here is the motor speeds and tilt direction for my MM.I see a lot of graphs showing the bad motor being faster than the others. Mine shows the Rfront significantly slower than the others (or else the other three are running faster?). How can I interpret this?
View attachment 149945
It looks roughly the same as the plot you submitted. AFAIK my MM never had the deformed props problem.
I suggest you follow @Zbip57 's advice and rotate the MM 720° to see if the motor speeds are dependent on any wind.