The crew on tech forum Geekzone have recently been wondering if Spark Sport has dropped its frame rate, making its video look worse on some devices.
One member, Richard Fewtrell, said: "It's not a popular move. I have an Apple TV 4 and the Spark Sport picture quality looks terrible."
The Herald asked Spark Sport to confirm or deny a lowered frame rate.
A spokeswoman confirmed the streaming services frame rate has been lowered but said it was to provide a smoother stream that would behave well on more devices.
Regardless, the move gives Sky Sport a bragging point as