<snotty mode>
Is it faster to open one connection, do 14 things and close the connection,
or,
is it faster to open a connection, do one thing, close the connection, open the connection again, do one thing, close the connection, and repeat that 14 times.
what do you think?
</snotty mode>
It is faster to keep the connection open.
Especially because closing it is pointless if you are just going to re-open the connection.
A forum, a FAQ, what else do you need?