MishanurKhan maybe you just didn't payed attention and that's ok if you just playing for fun and haven't been bothered. Totally normal i mean. But here is examples that I faced. Usually if you see low level players, let say that just started to play. That by default by the common sense even not familiar with the maps will always catch you and kill you, then will be on top of their team by KDA. And one another example when he like jump and without aim 90% of times shoting you right into your head. So yeah for sure it's just a possibility. That he is a super PRO player that just joined the game and he came let say from CS:GO and have a big experience of playing the similar games. But even so, he still need some time to get familiar with maps at least. And even so. Impossible to get so much kills and be toooo good right from start of your gameplay from lvl 1. Because dynamics can be a little bit different + skills in valorant. You need to learn some stuff anyway. But no, they know always exactly where you are. Sometimes they even pre-fire you. Looks like they can see through walls, even if you didn't run(didn't make foot steps noice at all) And yeah the worse is aimbot, when majority of their shots always hit to the head. Even if they jumpshooting. Always. And one another reason that cheaters are low lvl is that because they got banned for cheats, so they creating new accounts.
This is how usually I think that is a cheaters.