Well I'll update on this just as a warning to you guys, I returned the monitor back for my cash a while ago and have since done research on the net. What I found out was that most of LGs IPS panels have this issue (couldn't confirm for the curved panels), but it seems that either most people don't notice it, or it doesn't happen on every panel produced (in which case I got VERY unlucky). Even the top of the line 31MU97Z-B monitor has this issue reported.
What I planed to do was get the newest ultrawide panel in the form of LG 34UM88 in hopes that the issue has been rectified but for some reason only that model of the monitor has not been imported (maybe because I returned so many ). What I'm considering now is either Asus PG348Q (curved ultrawide) which also has an LG panel, or the Asus PG279Q which has the AU Optronic panel, but I really came to like the ultra wide format and I kind of don't want the curved panel as I feel it's a gimmick, so I'm currently stuck.
Another option is to wait for the new panels from LG, but that is ways off from being sold in a form of a finished product (well not way off but end of 2017 probably).
Well there you have it, if you are in the market for a ultrawide monitor be warned, pretty much all of them have LG's panels with the exception of the Samsung models.