最快的文件格式，用于读/写操作与熊猫和/或Numpy

I've been working for a while with very large DataFrames and I've been using the csv format to store input data and results. I've noticed that a lot of time goes into reading and writing these files which, for example, dramatically slows down batch processing of data. I was wondering if the file format itself is of relevance. Is there a preferred file format for faster reading/writing Pandas DataFrames and/or Numpy arrays?I've been working for a while with very large D