A latency-sensitive workload is any task where even small delays are visible to the user. Examples include gaming, real-time audio, video calls, industrial control interfaces, and some trading or creative tools. In these environments, responsiveness matters more than raw throughput, so added CPU overhead, driver checks, or virtualization layers can be noticed quickly.
In cyber security, the term matters because many defenses trade a little performance for stronger protection. Features such as memory integrity, endpoint monitoring, and application control may add micro-delays or trigger driver compatibility issues. Attackers may also try to hide malicious activity inside latency-sensitive systems, where defenders fear breaking performance and may delay hardening. For administrators, the key is testing security controls on representative hardware so protection does not disrupt users who depend on low-latency behavior.