Where, exactly, are you getting this "MVP" stat?
30/12 is feeding a LOT of gold.
You also have a less than 50% win rate on the majority of your most-played champions save for Diana.
While you generally get a decent amount of kills and assists, you also get a decent amount of deaths to go along with it.
I'll use one of your Quinn games you had a while back where you won, but still performed fairly poorly. Granted, it's B4, so "poorly" isn't all that poorly in comparison to your peers. Anyways...
You played Quinn top against Irelia top. (Both assumptions) The game was 42 minutes long. The first thing I'm going to point out here is what is considered to be a very high-priority stat. Your CS is fairly low considering the game length. I generally get at least 2 more CS/minute on every champion I play in lane. It doesn't sound like much, but 2 CS is around 40 gold and 42x40=1680 gold you're missing out on throughout the game.
Your KDA ratio is another thing to be considered here. While you DID have 15 kills and 16 assists (57% kill participation. Bravo!), you also had 13 deaths. Assuming you died once for every kill until the very end where you got a double or something, that's 3900 gold you gave to the enemy team. If that were spread out equally, that's 780 gold per person. Again, pretty noticeable.
You had 12 wards placed and 0 pink wards bought. While 12 wards placed isn't bad at all in low Bronze, you should definitely place more if you get the chance. Also, try to have a pink ward somewhere on the map at all times. They are NOT a waste of gold.
No, it's not bugged. You have areas of your play that need work.