Thank you so much for the detailed feedback, encouragement, and your kind patience with our experimentation, especially concerning the Live2D! This is really useful feedback! We're also really thrilled you enjoyed the characters and story so far, and we can't wait to share more with you!
Although the game appeared to have slowed down over time, I suspect the problem isn't a memory leak (hopefully!) but an issue we became aware of in our internal playtests before release. On my computer it appeared acceptable, but if possible I'd love to get some information about your computer specifications and some more detail about the amount of lag/fps loss sustained! If you have some time, please do respond or email us at inkethic@gmail.com with a little info about your CPU and GPU, and we'd be deeply grateful! If possible we'll update the demo with a suitable fix, or else just make sure the final release is as seamless and accessible as possible!
The history may definitely take longer when there's many characters on screen, but it should never crash the game if the player doesn't click around too much. Although there's no way to notify the player, the long wait is just to handle the model load. We'll keep working intensely on optimising that for the final release so that the wait doesn't feel as hairy!
Thank you so much again!