Help & troubleshooting for channels on your Roku device, including adding/removing channels, logging in to, authenticating, or activating a channel, channel-specific playback issues, assistance contacting channel publishers to report issues, and adjusting channel-specific settings.
Just throwing out that the 3500 is a very old device, and some apps have chosen to not support it, even though it's still officially supported by Roku. Personally, I thought the device was sluggish when it was new, and retired mine within weeks (bought it just to try it a stick form factor device). Even the superior 3600 is kinda sluggish compared to today's devices.
Perhaps some others that use the Spectrum app may be able to help. I hope there's a good solution for you.
DBDukes Roku Community Streaming Expert Note: I am not a Roku employee.
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Re: Spectrum App on Streaming Stick 3500X remote clicks delayed
Yep, aware the 3500X is long in the tooth...if it was sluggish on other apps or when maneuvering around the main Roku screens I would agree. I only see a problem when in the Spectrum App...all other apps work without issue.