Similar to this issue. I figured I just post it so for other users that can mock the same thing. "How to fix slow response on Logitech Harmony 880 Remote Control with Tivo"
------------- 1. Setting the Inter-Key Delay to 0
First set the Inter-Key Delay to 0. If this causes problems you can set it a bit higher, but 0 works for me. I also have Inter-Device Delay set to 500, but this is not important for what we are trying to do here. So to change this setting, which defaults to 500, from the Harmony Home Page select the 'More Options' link next to the Tivo device (not the tivo activity). The Device Options page should appear, from which you should select 'Adjust the Delays (speed settings)'. In the Inter-key Delay box, enter 0 and click Next, then click Next again from the next page.
2. Setting command repeat count to 0
Secondly and lastly set the command repeat count to 0. So to change this setting, which defaults to 3, from the Harmony Home Page select the 'Troubleshoot' link next to the Tivo device (not the tivo activity). The Adjusting Setup:Device Problems page should appear, from which you should select 'Show me more problems' radio button and then click Next. On the next page, choose 'TIVO doesn't appear to receive every command correctly.' and click Next. On the next page select 'The device responds too much to some commands (for example, volume up increases the volume too quickly).' and click Next. A list of numbers 0 to 5 will appear. This is the number of times the remote will send a command to Tivo which defaults to 3. Set this to 0 which works fine for me. If you have problems with this try increasing it to 1.
And that's it. Once I changed these settings, my tivo responded to my harmony 880 remote as quickly as it did to my tivo remote.
A couple more little tricks
To facilitate quicker fast forward and rewinds, I mapped the up arrow and down arrow respectively. I just found it a little difficult to quickly locate the fast forward/rewind and play buttons.
Since I also have a ‘Tivo Stereo’ activity, I added a custom button to lower the volume on the tivo. This also works with other activities like DVD. I tried just muting the tv, but the tv leave the word ‘MUTE’ on the screen.
