Flat wound strings and a piece of foam under the bridge are favoured by those looking for that old school, P bass thump (think James Jameson on the old Motown recordings).
Stick with what’s on there for the moment, until you work out what you want from it tonally, then you can investigate the many options. Fortunately, there is plenty of help on Basschat in this regards.
Nice bass you have there. 👍