First of all...
- 2 clicks are nothing..
- If you want a greater CPC, forget CTR and other things
- Concentrate more on gaining traffic, in short - WRITE USEFUL CONTENT.
I know people keep an eye on CTR and CPM, I was one of them, I had a CTR of around 7 and ecpm around 7-10 for around 2-3 months.
But I realized the cpc was low, it was like 10 cents. Gladly due to nice traffic, the adsense team emailed me some great tips and we talked together and sorted out how to gain a better CPC.
There suggestion was to make use of Admanager and set a standard price, now my CPC is around 15-17 cents and CTR is sucky, like 3-4% (this is due to number of different placements) but the overall revenue is 25% more, I know a extra 5-7 cents doesn't matter but when it comes to 500 klicks a day, it's an extra 25-30$