is it because the stops were close to each other and the motion was annoying?

Hmm, probably because bullet trains are supposed to be fast but when it gets slow when it stops at a station. The stops aren't close to each other after leaving the capital. Also, maybe because I lack sleep and haven't eaten anything.

The footbaths are yes, they're clean. I don't know how often they clean this up but officials make sure facilities like this are sanitary. The water is also flowing so it's not really stagnant water.