Extract the contents to a folder like C:\PES2021\EternityAudio . Do not put this inside your Sider folder. Keep it separate.
The Eternity Audio Tool is remarkably lightweight. It uses less than 2% CPU and about 150MB of RAM when streaming uncompressed WAV files. The runs on a separate thread, meaning it does not interrupt the game’s render pipeline.
It transforms a video game into a memory. It makes the hairs on your arm stand up when Anfield sings before a corner. It makes you clench your jaw when a last-minute winner silences the away end.