High performance file server

What have bunch of applications which run on Debian servers, which processes huge amount of data stored in a shared NFS drive.

we have 3 applications working as a pipeline, which process data stored in the NFS drive. The first application processes the data and store the output in some folder in the NFS drive, the second app in the pipeline process the data from the previous step and so on.

The data load to the pipeline is like 1 GBytes per minute. I think the NFS drive is the bottleneck here.

Would buying  a specialized file server improve the performance of data read write from the disk ?