Spotify Sound Issues While In Game

So pretty what happens with this is I can be in the regular League client window and have Spotify run and sound right with no problems, but whenever the game window is open and I'm in that window, Spotify will have it's volume depth and bass altered, but then revert to normal whenever I tab out. How can I fix this problem? Is it a League game client problem or a Spotify problem? I've pretty much searched through all settings in the Spotify window, my volume mixer, and sound settings. I would rather listen to my music with no issues instead of just not listening to music at all. Any help is appreciated.