Which way did you update the drivers? I wouldn’t trust device manager to update them as well as something like driver booster 5 this is what i did instead i found some device manager driver updates were already outdated or introduced some problems with cpu usage for some reason.
I’m too waiting for a 256gb ssd to arrive not sure how to clone the contents yet but it claims to be 560mbs write and 430mbs read i believe from transcend they have tow different models for some reason the one ending with an s is the newer faster version amazon uk just got stock and fair price compared to other companies like ztc and 3 year warranty, i couldn’t find anything larger than 512gb that is from a reliable brand.
sorry about any spelling or other error for some reason text and background is white today.