So, what can be done if your boot drive is suffering from degredation?
Is the only option to secure erase and reinstall?
Well, if you have an SSD with read speed issues using the same controller as this one (SM2256) then there is an option besides performing a secure erase or running DiskFresh.
And that would be to run benchmarks that read the entire drive because read speeds do improve (they are not necessarily restored but improved) when youve read the entire drive.
I think that a suffient amount of reads should pretty much restore read speeds (depending on the condition of the SSD).