How to transfer files to SD card faster?

sepz

Estimable
Jul 24, 2014
2
0
4,510
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.