I have s simple UI where I have a few buttons, a LOT of text, I basically use 
the buttons to assign values to the text. (I'll attach a pic)
I am using a TextEdit and DocumentHandler to do this. Select text, click 
button, it changes the background color. Or vice versa. It works extremely well 
on desktop, and I can see the events come across and be processed, but the 
update to the UI is forever (~30s). I don't know WebGL, if anything can be done 
that well but wanted to point it out. I know it's early yet, I'm hoping it 
could be further optimized.

Also the TextEdit doesn't scroll.

It's about 1000 lines of text, about 60 words per line, just messing with the 
background color for the text. 
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