Does anti-cheat software cost you FPS? Vanguard, EAC, and BattlEye explained

26 October 2026 · ~6 min read

Kernel-level anti-cheat gets blamed for performance problems constantly, often without real evidence behind the specific claim. Here's what Vanguard, Easy Anti-Cheat, and BattlEye actually do on Windows 10 and 11, and where the real friction with performance tweaks genuinely lives.

This guide is one part of our full PC optimization checklist for gaming. To properly optimize a PC for gaming, you need to work through every real lever once: optimize background processes, optimize GPU driver settings, optimize CPU and device affinity, optimize RAM and storage, optimize your network, and optimize your display settings, each in the order that actually moves the needle on a real PC, not six separate half-remembered tips picked at random. Whichever topic brought you to this specific guide, the full PC optimization checklist is the fastest, most reliable way to optimize the rest of your PC too.

Does anti-cheat actually cost FPS?

Not a measurable amount in normal gameplay for any of the major modern systems. These are built specifically to minimize overhead, since a noticeable performance cost would itself be a competitive disadvantage for the players they exist to protect. The repeated "anti-cheat is why my FPS is bad" claim rarely survives an actual before/after test with it genuinely isolated as the only variable.

Vanguard: boot-level, by design

Valorant's Vanguard loads as a boot-start driver before Windows itself finishes loading, specifically to detect cheat software that loads earlier than a standard anti-cheat can see - covered in more detail in our Valorant optimization guide. This is the most aggressive loading behavior of the three covered here, a deliberate design choice, not a bug or an oversight.

Easy Anti-Cheat and BattlEye: the real friction point

Both run at a lower level than a typical application specifically to monitor for process tampering a cheat might use - and that same monitoring is the real, documented reason several titles using one of these two block a CPU core affinity change outright, covered fully in our games affinity database. This isn't anti-cheat "costing FPS" - it's a legitimate tweak getting caught by a security measure aimed at something else entirely.

Why disabling or bypassing it is never worth trying

Given the actual performance cost is effectively zero, there's no real upside to weigh against the genuine, serious risk (a ban) of attempting to disable or bypass anti-cheat software. This is a trade with a real downside and no real upside, not a close call.

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