How to properly blur elements in CANVAS?

Question

JavaScript

Tell me how to properly blur e-you?
there is a Code
If you uncomment the code on the 23rd line, then everything starts to hang.
Can you explain what this is connected with and indicate the best way?

Answer 1

I didn’t find comments on the 23rd line ...
but in general, you can apply a filter over svg, because if my memory serves me, the canvas does not have a native blur, and the operation is complicated. Well, or write such things on webgl