If you want to run game even faster on PC, open file C:\Games\IC\IdleDragons_Data\StreamingAssets\localSettings.json and edit 2 rows "PercentOfParticlesSpawned": 0, "TargetFramerate": 600, close the file with save and right mouse click it for Properties put x for Read-only and save (game changes everything back as it was with every adventure reset or opening options but not anymore, read-only blocks this). Now game runs faster and you will get more gems per hour. Close and open game if it starts slowing again.