Your water temp looks fine, but the
oil temp definitely needs to be higher for optimum engine life. If you're sure that your gauge is accurate, you should try blocking the
oil cooler off with a piece of cardboard to see see if that brings the temps up. If that works, you might want to think about bypassing the
oil cooler altogether (it might be needed if you want to track the car though).
I see some pretty big fluctuations in temperatures in Northern California between the winter and summer, so I've been blocking the oil cooler off with a thin piece of rubber during the cold fall/winter months and removing it during the spring/summer months. Seems to work well to maintain a steady oil temp.