Yep. My mileage varies because by using Task Manger and watching my CPU performance I can see the time it takes for the CPU in my computer to settle down is variable in a range of 2 to 6 seconds or so.
Using the Task Manager CPU performance display minimized to my task bar has let me step up my game a bit and does not adversely affect the meter smoothness on my computer.
I can also tell by watching the CPU performance when a process or a program has started in the background that would make my meter less smooth.