If your Application is 50/50 in CPU / IO at a 100ms request. Getting 30% Reduction in total response time would mean the request is now only 70ms, DB stays the

If your Application is 50/50 in CPU / IO at a 100ms request. Getting 30% Reduction in total response time would mean the request is now only 70ms, DB stays the same at 50ms, your CPU is now only 20ms. That is 2.5x speed up compare to the 50ms previously. Exactly inline with the 2-3x IO-less benchmarks.