The goal of the Old Handwriting browser extension is to make it as easy as possible to quickly transcribe text on any web page. Therefore there are no special settings, dials or knobs to get exactly right.

If a transcription does not seem accurate, then you can try to use a different AI model and compare the results. 

You can use the AI Model drop-down to switch between the models and compare the transcribed texts.

Or you can open the More Actions menu (⋮) and "Copy all" transcribed text. Then you can paste the text into a document in the word processor or text editor of your choice.

If words are difficult to understand because of transcription errors, then "translating" the text using AI to the same language is sometimes helpful.