97 degrees centigrade is hot for a graphics card... too hot. You'll burn your card out in a week going like that. Use some third party software like MSI afterburner to set your fan speed to max.
(Take a look at your hardware errors "HW:" they're through the roof..)
266/3298 = ~8% of the reported rate is actually being accepted.
Also I'd recommend lowering your Intensity value to 12, and creating another thread. (ie: -I 12 -g 2)
It'd help to know what card you have.