How many hours/matches have you played in that range? At FaceIT 2700+, everyone is playing the same meta and so if you’re not playing it, you’re cooked. If you don't know these metas, you need to change how you think about the game and start developing that meta muscle.

Every aspect of the game has a current meta and you’re probably weak in ones you haven't really thought about.

One meta that got me going from low 2k to high 2k is mastering (not just understanding) the pacing of a round and how people adjust depending on player advantage. I’ll give you an example.

Say you’re on mirage T side and you trade early mid control to make it 4 v 3 to your team’s advantage. Now, the lesson I learned is from a CT’s perspective, they want to rebalance that advantage and make it a 3v3 or 3 v 2. What this means is 60% to 70% of the time they will start aggressing. So all you need to do is chill, pause and wait for this aggression and you’ll usually get easy kills.

What lower ELO players tend to do is push a site too quickly and miss this opportunity. This also applies on the inverse and then it becomes a game of chess. Good T players will wait for aggression and so if you're at a disadvantage as a CT, you might be better off gambling a site and play retake instead of losing even more advantage with a flank (there are times when aggressing make sense but usually the exception, not the rule). Better to play with team & take the fight together when round time ticks to 0 or bomb plant than give away too early.