If 10/5/26 is doing badly then well you've got some high standards.
No you just have low ELO. Seriously. I'm not even trying to be a dick or anything. You objectively have low ELO. Most games, once your W/L ratio goes above breaking even, do not get to 55 kills, even at 50 minutes, let alone 87 kills between two teams.
What I'm trying to point out by bringing your attention to your horrendous CS is how much of a bigger impact you could have made, much earlier in the game, if you had farmed up more effectively and focused on recovering from that counterjungle and that babysitting with Ashe.
Because in a game against a competent jungler, Trundle or not, he would have farmed your jungle as well and reamed your entire team because you were not present to provide pressure. Something you will probably experience soon if you have not already.