Why AMD Anti-lag feature considered as cheating by Valve?

Question

Why AMD Anti-lag feature considered as cheating by Valve?

In: 13

Answer 1

The antilag feature has been known to add code to within the game process in order to carry out it’s job.

Any unauthorized tampering with a running game process is generally seen as cheating.

As such, the Valve AntiCheat software identified the antilag feature modifying the game process, assumed it was malicious, and flagged the affected users.