Honda Fit GK3 Oil Pressure

[RC70]

Hello to everyone,
I bought a 2017 Honda Fit GK3.  It is a Japan import with 50000 km, L13B engine. 
I noticed that the oil pressure light does not turn off immediately after starting the engine.  There is about a one second delay before it turns off.  It happens all the time, cold or hot engine.  Changed the oil and fitted an original Honda filter but it remained the same.
Does anyone have a similar experience?  Is it a cause for concern?  Thank you.