Perhaps this is due to the fact that you have a non-standard monitor ... in 1920x1080 everything is fine. I will try to fix this bug, thanks for the tip, it helps to develop the game :)
A valid complaint from you and many others - so I've just added an F2P way to get the permanent 2x speed boost. You can unlock it for 500 gems. Or, you can unlock a temporary 4 hour 2x speed buff for 75 gems. Gems are fairly easy to come by in this game.
Titan Orb does not increase the rewards you get from opening your rewards. It is a drop that happens on kill - Much like Slimes and Boss Slimes drop stones. There is a visual to show got stones. Please update to patch 1.15.05 and check the patch notes to see more info on Orb
my knight is now a full on titan slayer SHE will always kill a titan with no imput from me and with the 2.5X speed boost on she has become a true god Muahahahhahahahahaha
Currently all of my time is going into a different game. I will get back to this one as soon as the other one is up and running.