Immediately responsive +/- in dramalist

When i click + now next to a drama it lags sufficiently that i cannot double click to add 2 episodes in a row. is there a way to update this? so that when i want to update my dramalist by 5 episodes i can click 5 times immedaitely instead of clikc and wait and clikc and wait. 

can we also remove that dropdown that says success. not very useful since i can see the numbers go up. and instead just obstructs me from clicking + a few times...

thanks for considering