Temp on a MSI 290

Im using a powered riser, stock i was getting a temp of 95c at 100% fan speed which i guess, from reading, is pretty normal. im not using a case. i have lowered the power limit and voltage to get the temp down to 87c ish at 80% fan speed. I'm not concerned with noise just longevity of the card. don't expect 5+ years but 2-3 would be nice. I'm running afterburner at 0 increase to Core voltage and -40 power limit, from my reading AMD won't let me change the core clock or mem down so its stock at 1004 and 1227. Are any of these number concerning? my knowledge on this stuff is still learning. or any other ways to cool beside a new heatsink or giant fan?

Thanks!