https://www.techspot.com/news/60501-samsung-addresses-slow-840-evo-ssd.html https://www.techspot.com/news/60501-samsung-addresses-slow-8... samsung fix was agg

https://www.techspot.com/news/60501-samsung-addresses-slow-840-evo-ssd.html https://www.techspot.com/news/60501-samsung-addresses-slow-8... samsung fix was aggressive scanning and rewriting in the background