docs: elaborate on performance a bit more

Author: adamkobor

docs/docs/features/performance.md

@@ -1,3 +1,7 @@
 _Kuvasz_ is a lightweight monitoring tool built to handle larger monitoring setups efficiently. It’s optimized to keep track of **many endpoints at short intervals** while maintaining good performance and reliability.
 
-Memory usage stays predictable and steady—even with a high number of monitors, you can comfortably set a ~380 MB memory cap on the container. _Kuvasz_ is built to be **reliable and practical** for real-world monitoring needs.
+!!!tip
+
+    _Kuvasz_ can easily handle **100+ monitors** with a check interval of 5 seconds in our testing environment with a limit of 380 MB memory usage on the container.
+
+Memory usage stays predictable and steady—even with a high number of monitors, because _Kuvasz_ is built to be **reliable and practical** for real-world monitoring needs.