Đặt lệnh post only hoặc limit nhưng xa giá thị trường ra thì sẽ ko bị vậy nữa

There is fraud in the orders above. Clearly, I placed a SL on ETH at 2474, but it was executed at 2466, slipping 8 points. Last time I placed a SL for BTC at 105500, but it was executed at 105100, resulting in a loss of 400 points. Meanwhile, I once placed a TP for ADA that spiked to 2 seconds but was not executed. Why should I suffer such losses?