the most clear deficiency of ntfs can be seen when you are copying (either reading OR writing) large volumes of source code or small files... ext4 is like 100x or more faster at reading and writing small files, it's completely out to lunch how bad windows ntfs is

and then you have the issue of the bad implementations for linux, which no coincidence due to the design of the structure also are bad at large numbers of small files (and no amount of tuning the block size makes a stick of difference)