Fast forward and rewind worked okay on the original Xbox which was a good thing since skip step didn’t exist at that time. It also still works okay on some platforms, but just some. On the Vero it will also be likely impacted if not using optimal playback setting…
Click to see recommended settings
We recommend people with 4K TV’s set their user interface (UI) to 1080p. Kodi’s UI is not optimized for 4K yet and this can put unnecessary demands on your device and can lead to a suboptimal picture quality, as well as potentially cause other issues.
The settings we recommend are as follows…
Settings>System>Display>Resolution> 1920x1080p
Settings>System>Display>Whitelist> (empty) *
Settings>Player>Videos>Adjust display refresh rate> On start/stop
Some televisions may also need, or benefit from, the following being set…
System>Display>Force 4:2:2 colour subsampling> (enable)
With the above settings your UI will be output in Full HD and your 4K content will be output in 4K. *Information regarding the whitelist can be found here. If you have any doubt, feel free to upload some logs so we can verify that your settings are indeed correct.
But even if it happened to work well I personally believe skip steps work better from a user interface perspective once you get used to using the direction keys to navigate this way. You may need to tweak them a bit to get them to your preference (I prefer the initial small steps to be +30 and -15) and that is described in what I linked to earlier.