How to transfer files to SD card faster?

[sepz]

Hey, I have copied my Blu-rays to hard drive as .iso files. My Xperia Z2 plays these blu-ray iso files fine but I have problem with transfer. My 64gb sd card benchmarked ~52MB/s read and ~50MB/s write but .iso files transfer to SD card only ~15 MB/s.
My phone doesn't support USB 3.0 so my question is would USB 3.0 microSDXC card reader help?

thanks.

 

[reedo_43]

Yes if your mainboard supports usb 3.0

 

[sepz]

This worked fine. Thanks.

 

[Alessio Aguirre-Pimentel]

Yes if your mainboard supports usb 3.0

My motherboard has a 3.0 connector. If I get a usb 3.0 card readere, will it read and write faster a regular 4x SD card?