Health Bars and Summoner Names Too Small On 4k Resolution

I recently bought a new 4k monitor and logged into league to try it out. As soon as i switched my resolution to 3840x2160 I noticed that I could barely tell the health levels of the minions and it is incredibly hard to last hit. I looked through the options and there is nothing to scale health bars (it is not HUD scale).

"So just set your resolution to 2160x1440 that should look fine right"

That does work and it does look fine but the only problem is that you are forced to use the fullscreen option which makes alt+tabing take a long time (especially on 4k). I am not exaggerating when I say that it takes a good 7 seconds for me to alt+tab to my other monitor and skip a pandora song.

The reason you are forced to use fullscreen rather than using the windowed or borderless option is because the game will not scale to your full screen and you cant grab the corner of the window and drag it to make it larger. You also cannot do the Ctrl+Alt+Enter trick to fullscreen the game.

If there is a way to scale health bars and summoner names please let me know and tell me that I am retarded for typing this whole thing when there is an option.

Thanks