From my personal experience, I don't think one's travel history has any impact on the processing time unless there some travel to countries that are flagged for alerts. I have traveled more than 10 countries plus have had 2 schengen visa refusals which I obviously did state on my application. Despite all of this, I received PPR in 4 months.
So if someone here is worrying about any of this, please don't
So if someone here is worrying about any of this, please don't