Update src/content/changelog/kv/2025-08-22-kv-performance-improvements.mdx

Co-authored-by: Matt Silverlock <[email protected]>

Author: thomasgauvin

src/content/changelog/kv/2025-08-22-kv-performance-improvements.mdx

@@ -12,7 +12,7 @@ Workers KV has completed rolling out performance improvements across all KV name
 
 ## Performance & reliability improvements
 
-The new hybrid architecture delivers substantial latency improvements throughout Europe, Asia, Middle East, Africa regions:
+The new hybrid architecture delivers substantial latency reductions throughout Europe, Asia, Middle East, Africa regions. Over the past 2 weeks, we have observed the following:
 
 - **p95 latency**: Reduced from ~150ms to ~50ms (67% decrease)
 - **p99 latency**: Reduced from ~350ms to ~250ms (29% decrease)