Is my ad campaign results good?

Hi,
Recently, i finished my game called 100 player hexagon tower, and ran an ad campaign for it for 10 ad credits (as a test) to gauge the performance. I’d love if your feedback on the results, and whether the results are typical for a party/casual genre. Also, some tips for my next ad campaign (50 ad credits)

I used 10 ad credits over 2 calendar days (with maximize plays)

I have a few things too that I’m curious about (plus I haven’t found any resources regarding this),

  • Is it better to split the ad campaigns up, like for 50 ad credits, I should use 20 first then 30 after that? Is there any significant difference
  • Does timing the campaign really matter? When’s the best time?
  • Is it better to spend in a short amount of time or prolong it

If you have any resources that you could share, please do. Thanks