I don’t see how the two things would be possible at the same time (unless you have perfect timing, in which case no quantising should be necessary).
In other words, the playback would only be instant if you happened to press play exactly at the right time. If your timing is bad (so you need quantise) then the system would have to wait for the next correct grid marker before playing.
Thanks for the suggestion @Gianni_Notarnicola. Can you please try to capture a short video of how this works in Traktor Pro, upload it to your Google Drive/Dropbox, enable sharing permissions, then share a link to the video here? This will really help to communicate your suggestion to the dev team. Thanks!
Hi @Gianni_Notarnicola, thanks for continuing to push this suggestion. I will share news here when I have it. In the meantime, please refer to the linked topic below regarding suggestions and our voting system. Thanks!