eSun has had quality problems recently, when they switched from the screw together clear reels to the molded black reels. I got an unprintable roll of PLA that was wet and brittle, others reported similar issues. This is theorized to have coincided with them moving production to Vietnam. 

Try to dry it, but if that doesn’t help, try a different brand. As far as your settings, I’ve printed a couple reels of the esun petg successfully at 235C, with 75C bed (though bed would have nothing to do with moisture). Agree 10mm/s print speed is excruciatingly slow. 50mm/s is typical for a Bowden setup.