Jungler Help Needed

So I've gone through a couple of bad ranked games today: http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/1714325545/203289894?tab=overview as mid Diana and http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/1714490861/203289894?tab=overview as Vi, my best jungler and main.

The second game went poorly on the basis of all of the lanes having connection issues, and our Kha'Zix mid rage-quitting as a result. You'd probably argue that it was a lost game from the start. But it also got me thinking: I tend to do better as a jungler when my lanes are at least doing okay without my interference. Does it make me a bad jungler if all of the lanes perform poorly before I can even get into a position to gank for them?

Additional info: I finished season 4 at the bottom of Bronze 4, and stopped playing ranked for a few months. Got Vi afterward, sometime in December. My win rate with Vi for this season is somewhere in the 60% range if LoLDB is accurate.