I feel your pain. I too am having problems with packet loss via the OpenSpot 4 Pro. I too remain hopeful that something can be done by someone at Shark RF to address the issue(s). As others have indicated, the severe packet loss issues are not prevalent with the OpenSpot 1,2 or three devices. Only the latest offerings appear to be impacted.
As others have said, you can use the Shark RF app to get your OpenSpot 4 to work as it was intended to by design. I tested this tonight (REF 0024A) and found it work very well. Of course, I did not purchase this product as a companion to our phones, tablets and such but to utilize with my favorite radio of choice.
Please try out the app from Shark RF to see if you notice an improvement in your experience.
Greg - W8YST