Fass 95

I've got a pump only fass 95 that I've been running for at least 8 years. today it started running a little low on pressure so of course I changed the filters. I think the pump may be getting weak it's got 150k miles on it now. My question is would it be worth upgrading to a higher gph pump? Truck is 600+ hp vp44 . I'm running a custom filter setup with fleetguard fs1000 into a ff5320 10 micron/2 micron. 1/2" line from the pump to the filters and to the injection pump. I've done the draw straw thing before on other trucks and never liked the 1/4 tank empty issue. So this truck is 3/8" from the tank to the fass. What more could expect from a bigger pump? Would I benefit at all.