I have noticed that my drive has been slowing down in the 7 months that it has been in use. The motherboard is the Asus Z97 Pro and connected on a 6 Gb/s connection. AHCI and Trim are enabled.
I am getting 361.4 MB/s seq read and 17.01 MB/s write on CrystalMark and 326.44 MB/s read and 51.19 MB/s write on AS SSD.
Here are the screenshots: http://imgur.com/a/920yl
Is there something that I can do about this?