Best way to do multiple large file upload

I made an ajax based multiple file upload which is working well enough. But the issue is I have to upload very large files means upto 200 MB of file each and may be 20-25 files like that at the same time. Files are uploaded but it takes very long to upload.

So what is the best solution for handling such type of file upload, which perform fast.

My internet connection is of 100 MB/S and upload speed with 20 MB/S.

Please suggest me some good solution.