clarified information on performance

README.md

@@ -84,7 +84,8 @@ TN12345682,GLS,"Street 5, 70173 Stuttgart, Germany","Street 15, 1050 Copenhagen,
 
 > What would be required to scale this application to handle 1000 requests per second?
 
-This application already handles over 3000 requests per second with ease, even with an artificial 20ms cache access latency.
+This application already handles over 3000 requests per second with ease,
+even with an artificial 20ms cache access latency (and artificial 50ms DB access latency).
 
 Granted this is all for the same URL, and it can be slower if we will be requesting different URLs.