BSJ explained how to minimize farm loss due to team activities in Dota 2

The first step is simply to determine whether you’re in farm mode or fight mode—not based on what you want to do, but on what you’re actually doing at that moment.

Most carry players know that in the early game, the farming pattern looks something like this: push a wave, clear one jungle camp, then another. This is the standard approach you’ll follow in the early stages of the game. To use my system correctly, we first determine that we’re in farming mode. We simply move from camp to camp, but stay alert in case a teammate wants to go for a kill and we find ourselves outside the farming pattern. ...>

So, your MMR and your ability to maximize the balance between participating in fights and farming depend on how long it takes you to realize that a fight is over and you need to return to your lane. Step one: Realize that we’re in a farming pattern. Step two: Realize that we’re breaking the pattern to participate in something. Step three: Whatever we’re doing—whether it’s assisting in a kill, ganking, or pushing a tower—we realize that the action is over and it’s time to get back to lane as quickly as possible.

I’m not trying to oversimplify a super-complex decision; I’ve just often seen players linger too long in fights. They don’t really understand how to effectively separate themselves from the team. Because there are so many variables at play, they often decide to either farm exclusively or participate in every fight.

I want you to learn to recognize, “I’m farming right now,” and then trust your instincts to tell you if there’s something on the map you’d like to participate in. If there is, you consciously switch out of farming mode, and once you’ve completed the objective, you return to it as quickly as possible.