Would be nice to check and investigate. Some SSDs may count/report the lifetime writes value differently than expected.
I suggest to install the latest possible version first just to check if there is any difference.
By the latest version, please use Report menu -> Send test report to developer option two times: please send once as a base and then following one after writing for example 10 GBytes of data (and wait some minutes to allow the software to detect new values). From the two reports, I can check, compare how the internal values of the SSD changes and verify if things can be improved.