It is hard to help you with so few hardware information...
Do you have several hard disk drives/solid state drives ? Can you tell us its/their make and model ?
Are you copying from an USB hard disk drive ?
If you launch the "Disk Utility", is/are your hard disk drive(s) healthy (no bad sector, ...) ?
If I were you I would first check that all my drives are healthy with "Disk Utility", then I would perform some read benchmark tests with "Disk Utility". Then I would make some write tests (copy of big files [several GBs] from your home folder to one another folder in your home directory), then from your NTFS partition to your home folder again (big files of several GBs each), ..., to further reduce the list of possible problems.