This is one of the main problems of tiddlywiki: everything is synchronous, therefore blocking.
I have suggested in a couple of times to adopt a lore asynchronous paradigm ,which will not block the user interface at least. But I think it is an almost impossible task because how deeply integrated the synchronous behavior is. Probably a total rewrite would be necessary -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/9d4cc4f7-ea93-4682-b83b-8bc06b52a26d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.

