The watermark function causes page lag！！

[DU0427]

After I switched to the watermark function on your demo page, the entire page froze. I integrated Vue into my own project and it was the same.

[kaplun07]

I have the same problem ((

[rostagnolisandro]

Hey there, I've just posted an issue (#514) and then I've found this one, I think they are related to the same bug, but I can't figure out what's the problem. It has something to do with buttons that show a list of options when clicked (like "Add watermark" button and "Save as" button).