Very slow response of SXMB_MONI transaction

Hello Experts,

We are facing performance issue for transaction SXMB_MONI in ECC production server. It is taking around 10-15 min and even give Time out

error in ST22 dump.I have gone through various threads on this topic where it is suggested to rebuild indexes and run DB stat.I have rebuild the indexes

SXMSPMAST~ARC

SXMSPMAST~DEL

SXMSPMAST~MON

SXMSPMAST~PAR

SXMSPMAST~RTM

SXMSPMAST~TID

SXMSPEMAS~0

and updated statistics but again I am not gaining any thing . Need ur immediate support to troubleshoot this.

Thanks

Aditya Roushan