Lap timing seems to be 1 lap behind, for instance you turn a nice lap, it is lets say a 13.00 the next lap you turn a lap that isnt the best and your time is a 12.7. I don't know if this is a known issue or if it is a track issue that the dev did wrong.
The pit board shows the last lap and the dash board of the bike shows the "real" lap time :)