I'm not from Ruger, BUT...
I'd say no. Most manuals have specific prohibitions against shooting +P rated ammo. If Ruger doesn't, it's a safe bet that it will be no problem. If it does develop into a problem don't worry. You send the gun back to Ruger and they make it right. If the P-95 was designed as well as all other Rugers on the market, the gun might just laugh at you if you DON'T use +P in it!!!