To be clear, there are no weapons that, if stored in the ring, can be drawn and used instantaneously. And there have been no weapons put forward that would allow us to fight and play the flute at the same time. Seems to me like you're trying to make the polearm option look worse, but all weapons have those limitations.
As for clumsiness, Ling Qi is massively strong compared to a standard human thanks to her cultivation and even regular humans can learn to wield a glaive or halberd with a measure of grace. We have even been told she's strong enough to use her Dexterity attribute for all but a few weapons. It's not an issue.