What does laptop HDD "Specification supported SPC-4" means?

Solution 1:

Comparing the difference with my current one, it has a difference of specifications.

Well, one is connected internally, using ATA8-ACS, and one is connected via USB, using USB mass storage (which is basically SCSI), with the SCSI Primary Command set version 4.

And that's because of the way they are connected; if you'd connect your new drive internally, you'd also see some ATA protocol.

i have problems using the new drive as internal (cloned it, windows 10 booted but very slow).

That can have a wide variety of reasons, the most likely one is some Windows issue because of the way you did the cloning.

But connect the second one internally, and check the signal speed - if it's also 3 GB, then "difference in protocol" is not your problem.