Comments of chapter undefined of Transmigrated Scoundrel's Exchange System

i feel like the story is going to face slapping detection. i like the mc better when he was low key, not because I don't like high profile MC but there are no explanations and things just become convenient so the mc could mc could show off. since when did he learn to control his qi this masterfully or for when can he control his qi outside of his body . why can fight above his realm with an sword technique which has no explanation if can't even explain the sword technique at basic level or how does an level second qi refinement have enough qi to damage an foundation building. if he level 9 qi refinement then it would have at least believable.