Slow USB 3.0 Speeds

[T1125P]

Hello, actually I didn't think of that I will surely test out the ext4 file system on my USB and see how fast the speeds are thank you.
Reason I use exfat is because I transfer files from my Linux PC to my Win 7 PC   I just came across a program that lets you read the ext file systems in Windows, it's called Ext2Read, so if the speeds do improve I will use this program to transfer my files instead of exfat.