I respect your decision to not have a background daemon running for indexing, BUT it's really getting in my way. It's not instant. It's not snappy enough. I wish you added an opt-in configuration that runs a daemon so that it won't have to constantly index everything and waste CPU time. The reason anybody would want to search tabs is for instant access to the information, and it fails at that, at least on my hardware.

low indexing speed

Nice for use. Is it able to be localized?