Luban Text input slow and missing letters

Hi, think it must just be the lag between the spell checking and the text appearing on the screen/render update, but I cant even type at a normal rate or delete the text as it keeps re rendering, can I switch maybe the spell check off?.
I am now having to write text in notepad and pasting it in as it takes such a long time for Luban to register a keystroke the words are miss spelt and I cant trust it.
Any ideas?

Yea. Same. It’s been driving me bonkers. If you’re deliberate you can make it work.