Normal Games needs a tier bassed matchmaking system !

When im not in the mood to play ranked which i didnt be able to do this season yet (im a plat 5 last season) I play every day after work, but i always play with bronze or silver players also a lot of unranked and low level players !! so that makes the game unplayable for me tbh its like im playing in a different way than them i dont want anyone to get me wrong here i dont mean that im better than anyone theyre all good and trying there best ive been a bronze and silver player my self for like 2 seasons so all what im saying here is it like the AI or the system for matchmaking on normal games is not working right ! Some of my friends told me its about my MMR and i dont think so because i checked it and it seems to be right and i dont think i sucked that hard to be matching with Unranked and bronze players So what do you guys think ? Thanks