SQL*Net message from dblink

Hi All

This my one of the top event  SQL*Net message from dblink  in the AWR report, how do i need to slow this performance issue

Event                                 Waits     Time(s)   (ms)   time Wait Class
------------------------------ ------------ ----------- ------ ------ ----------
DB CPU                                              477          51.2
SQL*Net message from dblink          65,148         340      5   36.4 Network
db file sequential read              27,188          60      2    6.5 User I/O
log file sync                        27,261          40      1    4.3 Commit
SQL*Net more data from dblink        17,787          11      1    1.2 Network
Host CPU (CPUs:   32 Cores:   16 Sockets:    2)
~~~~~~~~         Load Average

Thanks

Shashikanth.N