Feedback for my game, Merge Elves

Hi there, recently a friend and I released a new game known as Merge Elves. This is not our first project and we have found minor success in the platform prior, so here comes my question.

After advertising the game for 24 hours to get a feel for its analytics, I have noticed that we are not acquiring many users from the sponsor. Our insights have not loaded yet but I just wanted to post here to get some feedback as to why our CTR may be significantly lower than we are used to, and why we are not sustaining at least 5-20 CCU with a $50 sponsor.

Any feedback would be greatly appreciated, as I personally really enjoy the game.

To give a bit of an update, our analytics have indicated an average session length of 5.4 minutes for our 1.1k new users. This is terrible lol… If anyone has any idea as to why players are not playing for very long, please reply to this post. I personally find the game super addicting so am trying to figure out if we need to add more features to encourage engagement or if there is an underlying issue not related to the game loop that is causing players to leave. Thank you so much!