Annotations and FPS drop

Hi everybody,

I have this Javascript plot with approx 30 annotations inside of it. This makes my FPS drop to about 15 fps, and I cannot allow my application to be so slow : is there a way to counter this ?

I found this thread :, but it does not solve my problem as I need to style the annotations as they are on the image below.

Here is how my annotations look like (5 among 30 in total):