Upgraded transcend ssd not at maximum speed
Upgraded my MacBook Pro mid 2014 with an ifix it battery and a new transcend ssd. The battery is working good but the ssd is at lower write speed.
Transcend 240GB JetDrive 850 NVMe PCIe Gen3 x4 SSD TS240GJDM850
The original Samsung is a x2 lanes and I reach speeds of 500/600mb/s
The new ssd is a x4(supported by the MacBook) and should reach speeds of 1000+mb/s. Other people confirmed that they get them for the same MacBook.
I have done a complete macOS re-install but was not able to get more that 600/700mb/s write speed.
Read speed is with 1200mb/s. I have tried other ssd brands and have seen a similar behavior but thought was the ssd quality.
Any suggestions on what could be wrong and how could I fix it?
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