Slowdown used in a sentence

Slowdown in a sentence as a noun

That's what caused the slowdown in the posts during late 2010 to early 2011, not the sale to Match. com.

It shows upto 50x slowdown! Not exactly sure what the point of a benchmark without multithreading is.

I'd like to crunch these numbers further to get a "framework optimization index" which would be the percentage slowdown or ratio of performance between the host platform and the performance of the framework on top of it. I might do this later if I get a chance.