doc update

Signed-off-by: see-quick <[email protected]>

Author: see-quick

development-docs/systemtests/io.strimzi.systemtest.performance.UserOperatorScalabilityPerformance.md

@@ -16,7 +16,7 @@
 
 ## testLatencyUnderLoad
 
-**Description:** This test measures single user modification latency under different load levels to understand how response time scales with system load.
+**Description:** This test measures user modification latency statistics under different load levels by performing multiple user modifications to understand how response time scales with system load.
 
 **Steps:**