Hash Rate:942.20/548.78GHs
Thanks,
1hr value is only shown after you've been mining for 1 hour
The 5min value has high variance and takes about 15min to get close to your hash rate.
The 1hour value has lower variance (but that depends on the miner) and takes about 3 hours to get reasonably accurate.
All rewards are based on submitted shares, not estimated hash rates - see Shifts
Thanks, Kano. Very clear.