Here is exactly what the S&W manual for M&P pistols says:

“Plus-P” (+P) ammunition generates pressures in excess of the
pressures associated with standard ammunition. Such pressures
may affect the wear characteristics or exceed the margin of safety.
Use of “Plus-P” ammunition may result in the need for more
frequent service.
“Plus-P-Plus” (+P+) ammunition must not be used in Smith &
Wesson firearms. This marking on the ammunition designates that
it exceeds established industry standards, but the designation
does not represent defined pressure limits and therefore such
ammunition may vary significantly as to the pressures generated
and could be DANGEROUS.

Whatever ammo you select, the more powerful it is, the more rapid the wear on the gun will be. Evey shot shortens a gun's service interval. How much depends on the ammo.

They really don't want to have +P+ stuff in their guns. And it makes sense. There are no established SAAMI standards for the mythical +P+ stuff so how could any manufacturer approve its use?