i found cheater

this Guy literally went afk for at least 15 minutes when less than 20 second left on his clock he started moving weirdly fast and accurate like in start he was taking at least 10-20 seconds to move but after that each move took around 2-3 second. I literally panicked started making mistakes. anyway i reported him i will inform you all if i was right about him https://preview.redd.it/1an4xpqcl9le1.png?width=1482&format=png&auto=webp&s=5d20e706ef1ee6aeb3d6adfe9301d7f10fce3bb1