X1 service poor performance on long recordings

I record and watch a lot of sports.  The recordings are often over 4 hours long.  The performance of the X1 system is very poor during playback of these long performances.  While watching playback, if you press any fast-forward it consistently takes 4 to 5 seconds to respond.  This doesn't happen with short recordings.  Press play to stop fast-forward and there goes another 4 to 5 seconds.  This slow performance is not acceptable.

The other problem I have had for years is watching a long recording (like a football game) while the game is still being recorded.  Pressing any playback keys (fast-forward, pause, Skip) will often cause the system to freak-out and return the recording to the start.  It happens so often that I keep a notebook and write down the current position of the playback before I press any remote keys so I can x5 to get back to where I was before the X1 service errors and returns the recording to the start.

I have had my X1 service since it first came out and am a happy customer, but it really performs poorly on long recordings.  Not looking for any reply, just hope these issues make it to the proper support/development team.