I have a guitar piece with many slurs. Would like to see slurs in standard notation but not in TAB. Is this possible?
I’m afraid at the moment there’s no one-click option for this. You can select all the slurs in the tablature (select one, then use Edit > Select More to select the remainder) and set them to be completely transparent via the Color property.
Or create an additional player, set that to TAB only, and set the original player to notation only.
Than duplicate to staff below, and adjust to taste.
FWIW, I consider this a workaround until the linked TAB notation gains a little more independence over what it displays exactly… 
B.
P. S. : this workflow also opens the possibility to display TAB on certain staves only, which I use a lot.