I’m not sure if there will be, this will be hard to tell especially at different times and shifts.
In advance as long as you just provide them with any documents they can ask for (passport and any other documents) then you can just make it clear you don’t speak their language. If you present all the documents they may ask for you should be able to proceed with no issues.
If further questioning needs to be done then they will always have an available translator/interpreter even though you might have to wait.
There are several services that could reduce the language barrier:
In this case if you are eligible applying for the e-gate service might be useful. You have a lower chance of having a big language barrier there. You must be a ROC citizen or holding residency in Taiwan with multiple entry permits to be eligible for this service.
Online arrival card
This website states that the following people must fill out an arrival card, if you’re not a citizen/resident of ROC (Taiwan). This can be filled out online here to reduce the language barrier.