Laser treatment PDL VBeam. Question about laser power or Fluence

Ok I'm going to a new derm who is using the same laser as my previous derm. My new derm only puts the PDL Vbeam laser to a Fluence 7.25 J/cm2 max.

My old derm maxed use a Fluence of either 7.5 or 8 J/cm2. Is there a big difference of the new derm only using 7.25 compared to the 7.5 or 8 Fluence?? Note the 7.5 worked fine for me before, as my rosacea is mild.