Traffic Junky Mobile CTR?

Hi BHWers

i have a campaign running on Traffic Jinky Mobile inventory, very small just to taste the waters

i was wondering if the CTR is soo much important like with CPC
Traffic Junky is CPM soo i really dont have a clue whats good healthy CTR can anyone help me with advice or some experience with TJ ?

My campaing is just starting and since i dont have a big budget is going quite slow, just figuring it out as i go

14 Click
6,573 Impressions
0.21% CTR



Thanks everyone