definitely not. pac is one of the hardest training athletes in the world. moving up in weight will obviously drop your stamina a little, but i don't think it's significant enough in his case to even be worth noting.
I know how ***** ass haters like you work. You hate a fighter for your pathetic reasons that you would never admit and then you see that fighter take on challenge after challenge and every time you hope that he loses. But when he wins you come out with 10000 excuses why he won and then hope he loses his next fight. Eventually like every great fighter who pushes himself to the limit consistantly he will lose and then your ****** ass will come out of the woodwork saying **** like "I told you so!" but everyone with half a brain knows that in the end history will make you look like the idiot you are. So keep on hating you stupid ****, you're getting real good at it. You can't wait for the Pac train to derail but if you opened your eyes you'd see that it's already travelled way more miles than anyone elses in a long long time.
Do you think it's more the wars or the weight that is slowing him down? In either case, I feel Floyd's slickness would be a nightmare for Pac, and if I were PBF, that'd be MY plan; let Pac do the attacking, stick him as he approached then move, let him connect 1 to the gloves so long as he missed wildly with the other 5, and look for opportunities to counter. The whole idea is to let PAC do the hard work, not Floyd, thus tiring him out so I could come in blazing around 9/10.