It’s not a technical problem so much as it is a question of which features to develop before other ones.
Currently we’re working on a couple of performance boosting improvements especially to do with serialization of large datasets, making caching more reliable, and polishing a lot of existing features. It’s all about making good on the promise of being able to do beautiful things with data, first and foremost.
Thanks for all your continued bug reports and feature suggestions. We read them all.