So recently i have started using Amarok instead of Clementine and of the problems that i am facing is the analyzer widget being frozen, it only works for a fraction of a second after playing another song. Also it's not frozen when there's nothing playing...
I have used Amarok in Plasma 4 and the analyzer worked just fine.
Why is this happening?

Doesn't freeze for me here on Plasma 5.9.4.
Please always state your application version, distribution and Plasma version, it makes specific answers easier.