Yeah, that should not happen. I noticed the same when watching Splattercat's video. His tutorial was slightly out of whack because he had some crash he mentioned briefly. I will have to double and triple check this. Crashes shouldn't happen, especially not this early in the game.
It is currently set to 0.75 seconds but will be reduced to 0.5 seconds in the next major update. I am also considering shifting the display of the card away from the pointer.
Follower Stat Colors
There really is no way to do this "right". I had it as red = attack, green = health but people kept complaining. In the end I looked at Hearthstone, considered them the market leader and just took colors that were similar to theirs. Still I decided to add icons to the cards themselves to make it clearer.
It seems that the yellow/red color scheme works for a lot more people than red/green ever did. Plus it has the added benefit of still working for red/green color blind people.
So: I know where you're coming from - it's where I started out, but I'm not likely to change this again :)
And lastly: Thanks for your feedback! I hope you enjoy the game. If you have any questions or need anything else, please let me know!