Since Mid january I have experienced horrible GPS accuracy - from start to end of my course -
Since Mid january I have experienced horrible GPS accuracy - from start to end of my course -
Without having any of the particulars to your situation, please check out the following article for tips to improve GPS, What Can Cause GPS Accuracy Issues on My Fitness Device?.
Outside of that, I would check your CPE/EPO file on your device.
The other thing you can do is adjust the settings on your device.