Interface problems make the game unplayable on 3140*2160(4k) screen

Hi summoners.

I'm posting this with despair and sadness , as I lose all hope of making LoL playable again until something is actually done by Riot. The problem has been pointed out a few times in the past months: All the text (health bars, KDA, stats...) is about 3 times bigger than it should be to fit the HUD (and still is even if changing HUD size in the options menu), and the rest, champion, monster and minion health bars, minimap icons, mouse pointer, is 2-3 times smaller than it should be. This obviously makes the game really hard to play, it hides informations and make missclicks more common than successful clicks. I use a DELL Inspiron 15 7000 with a 15,6" screen and Windows 10 I have tried everything I could find in previous boards:

1. Resizing texts and/or other elements through display settings (tried all combinations)
2. Right-clicking on the launcher itself and "disabled display scaling on high DPI settings" in the settings.

Number 1. actually solved one problem: text size. By reducing all item's size to 100% in windows's display settings, you make the text in LoL readable. For the mouse pointer, another solution exists: Yolomouse, a small software that allows you to change cursors in-game. However, health bars and the minimap still are completely useless all the time, except if you play with your eyes glued to the screen.

This is a cry for help, not to my fellow players who have done everything they could for me, but to Riot Games. I have no idea how complicated it is to fix this, but I'm pretty sure it can be fixed. As I don't really see how a LoL problem could be much bigger than this one, since it makes the game virtually unplayable, I beg and hope for quick support to avoid making me give up on playing the game that has filled me with joy over the years.