When using zoom, in upper left corner if you zoom in it will show some half text and very unstable while screen is not to clear xompared to compizconfig-settings-amanger in Ubuntu 16.04

Enable zoom = alt + super + 8 - zoom in with alt + super + = / - In left upper corner there will be shown some half text. Im pretty sure it should not since its above the screen.. The zoom feature is very unstable and i have tried to install compizconfig-settings-manager, but the keyboard strokes i made didnt work.. This is very hard on my eyes to work with (Writing this form a Ubuntu 16.04 where all works like a charm).
It sould also be nice with an invert colors feature in settings -> Universal Accessibility icon. Also please add keyboard shortcuts to the other options in Universal Accessibility to make it easier for visually impared users. I also enabled high contrast, but didnt make the screen much clearer.. I also thing the colors of text in general of Ubuntu is very poor for visually impared people.. Is Ubuntu not for all humans? Or are visually impared users being forgotten? THis is based on Ubuntu 18.04.1 AMD64 - I hope someone in here would have interest in looking into these bugs since they keep me on Ubuntu 16.04