If you're lagging, it does not mean you do not have to try
Last game, I had a Poppy jungle who apparently had over 100ms, about 600ms I believe. It seemed as he was AFK farming for most of the beginning of the game since he barely used his skills and always typed to the enemy team. He kept complaining about how he had really bad lag and how much his team sucked. Well we did suck, I'll admit that, but he never tried to benefit the team in any way, even though everyone but him tried their best to at least get us ahead in the game. I understand that it might be difficult to make an impact on the team if you're lagging but there's still many ways to benefit like warding for vision, paying attention to which laners are where and trying to gank whenever it's possible. It's possible to benefit the game even if you're lagging, you just need to know how to do it.
Now what ticked me off the most about this Poppy is when my boyfriend and I tried to confront him about this, he claimed that we were flaming him. Like NO SWEETHEART YOU NEED TO PAY MORE ATTENTION AND TRY YOUR BEST BECAUSE THERE ARE STILL PEOPLE IN THE GAME THAT WOULD LIKE TO STILL TRY. I think Poppy gave up talking and started to troll us by standing near enemies and letting them chunk her health down. JeSuS ChRiSt JUST STOOOOP.
tl;dr: Even if you're lagging, please try your best and don't be a bitch