Pool-side reported hashrate may differ from your local speed. That's because of pool count speed based on sent shares. So at a specific moment displayed hashrate can be lower or higher than your local, but in long-term, your pool speed will be equal to your local. Of course, if you didn't generate bad shares because of overclocking
And, sure, you can try other pools listed above. It will be good for the network too.

2ALL: please note that the total hashrate of the network is quite low So catch the moment ))