SSD points

Why does this occur ? I'm transferring this recreation from inside storage on my collection s to a conveyable SSD. The velocity is 2 Gbps till it reaches 80-90% of the switch, then slows wayyyyyyy all the way down to solely round 200 Mbps for the switch velocity. Why ? It's purported to be an SSD and but it's being slower than an HDD… And it's not low house. There's virtually 700 gb of free house left on the SSD as I solely have a couple of video games saved on it. May as effectively simply get an everyday HDD if that is gonna be the way it goes..