Hello. I noticed that a wallet is creating a transaction just before me, both for when buying and selling. I'm sharing the screenshot and the wallet address below. I wonder how this is possible? Because of this kind of bots we are losing when buying and selling. I hope you can find a solution for this kind of issues.

You can check this account and it's transcations. If you need more info please let me know.
https://tronscan.org/#/address/TRhhAC4E163mZNpfueiizH7GAYM4H8vmyB

Clearly someone has found a way to prioritize their transactions in the mempool or something like that.