dcowgi

Confirming what has already been reported here.  Lag seems to increase on larger worlds, For me this is worlds that are larger than 50 mb.  Also lag and freezes occur when in areas where there are lots of buildings and creatures.  
I have also experimented with various setting to try and improve performance with no success.

Thank you for your help.  I consider this issue resolved and can be closed,  Have a great weekend.

yes.  The Random Tick Speed was set to 1 on the world that was working and 0 on the world that wasn't.  I have updated that setting and the soil is becoming wet and the melons and pumpkins are producing once again. 
Thank you so much.
Can you tell me what the appropriate value for that setting should be?

This is a local world on my switch.