Engine rattle/tapping on startup

[Kompressor]

If oil level is even just slightly low, it takes longer to lubricate the upper engine parts.

If the oil level is ok, do as I have suggested in other discussions, warm the bike up for 20 to 30 seconds at above 2,000 revs. ( per the handbook ).

The rattle seems to be at about 2k rpm for the first 15 min of riding. Not the tapping, its like a rattle that appears as I decelerate of free rev at 2k.