i have a big folder 2TB with 1000000 files. i want to build a package with tar. i do not care about the size of the tar file so i do not need compress the data.  how can i speed up tar, it takes me a hour to build a package with tar -cf xxx.tar  xxx/.  i have a powerful cpu with 28 cores,and 500GB memory，is there mutithreading way to speed up the tar? 

or if there any good way to transfer huge small files between different folder  and between different server. my filesystem is ext4. thanks for your help in advance