Hey guys Can anyone help me with the problem I'm currently facing: My Macbook Pro (2017) writes extremely slow to USB flash drives. I have tried 3 different USB 3.0 flash drives (only one encrypted) and they all drop down to less than 30mb/s. However using the same flash drives on a Surface goes way faster (normal USB 3.0 speed). As adapter I'm using an Anker USB-C to USB 3.1 Adapter. I have no idea what is suddenly causing this. I also tried different ports. Everything else on the macbook works just fine. Should I take it back to the Apple store? Thanks in advance!