There was a hang/performance bug [1, 2] that was reported just after the beta release, which we've since fixed [3]. You might try seeing if we get through your entire project now?
(And as an aside, there _is_ a verbose mode: if you add `-vv` you'll get DEBUG-level log messages printing out the name of each file as we start to check it, and you can set TY_MAX_PARALLELISM=1 in your env to make it very clear which file is causing the hang. That's how we debug these kinds of issues when they're reported to us.)
[1] https://github.com/astral-sh/ty/issues/1968