Plus the PepperFlash issue with Chrome, there are a lot of things you can do at your end to make the meter smooth:
Smooth meter - Optimizing your Windows computer
If your computer's CPU is busy doing other things the meter cannot play smoothly on your computer.
If your meter suddenly starts jumping make sure some software application, like your anti-virus/malware starting a scan, didn't just start.
many of us keep Task Manager open as an aid to showing when to start our downswing, but also to monitor CPU performance so we can see if our CPU is busier than we want because something started up.
Use Task Manager to advantage