Really slow read speeds Sandisk SSD Plus 480GB

I’ve got two Sandisk SSD Plus 480GB drives (one about 4 years old and newer one)

The older one works just fine about 550MB read and 530MB write.

The newer drive is only getting 70MB read and 198MB writes - all tested on differtent PCs and SATA cables. Is the drive broke and needing an RMA?

This is the older drive with good R/W speeds
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This is the newer drive with bad R/W speeds.
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There are no health or SMART errors from either drive and both have uptodate firmware.