Poor performance on Android

[stevebrowndotco]

Hello,I have a hybrid app built in Ionic. I noticed that when parsing emojis, the performance locks up the device, rendering it unusable for a period of 3 - 4 seconds. I am using in conjunction with ngx-markdown but I isolated the issue to this library.

Thank you!

[zarko-tg]

It's most likely this issue, still unresolved
#1 (comment)

[netzzeit]

Hey,

I'm facing the same issue in my capacitor project. It's working like a charm on iOS, but blocks the UI for a couple of seconds on Android (v11, v12, v13). I tried to put the first call into a setTimeout to handle the process asynchronously, but the blocking persists anyway.

Since there is no solution at the moment - did anyone find an alternative library to achieve the emoji-shortcode replacement? I'm using the shortcodeToUnicode function only.

Thanks a lot!

[brenc]

This has been happening for us for a while on desktop browsers (probably mobile too but most people use the built-in picker there). The first call to toImage takes several seconds to run but subsequent calls are fast.

[brenc]

This seems to be most pronounced with Chromium based browsers. Tested on Mac and Windows 11. Chrome, Arc, Brave, and Edge all take 3-4s on the initial call to toImage or shortnameToImage (anything that calls the line below). This might be why it's so pronounced on Android.

FF and Safari lag as well but it's < 1s. I've narrowed it down to this line in lib/js/joypixels.js (I'd link to the exact line but it crashes my browser):

str = str.replace(ns.regShortNames, function(shortname) {

I think something changed in Chromium in the past year or so as I have never had a problem before then. Still looking for a workaround for this.