Number sequence database blocking

Dear All,

From few weeks back, we experience a system slowness and also when checking the database we get a database blocking code as follows.

This is related to number sequence table.

SELECT TOP 1 A.NUMBERSEQUENCE, A.TXT, A.LATESTCLEANDATETIME, A.LATESTCLEANDATETIMETZID, A.LOWEST, A.HIGHEST, A.NEXTREC, A.BLOCKED, A.FORMAT, A.CONTINUOUS, A.CYCLIC, A.CLEANATACCESS, A.INUSE, A.NOINCREMENT, A.CLEANINTERVAL, A.DEL_LATESTCLEANDATE, A.DEL_LATESTCLEANTIME, A.ALLOWCHANGEUP, A.ALLOWCHANGEDOWN, A.MANUAL, A.FETCHAHEADQTY, A.FETCHAHEAD, A.MODIFIEDTRANSACTIONID, A.RECVERSION, A.RECID

FROM NUMBERSEQUENCETABLE A WITH ( UPDLOCK) WHERE ((DATAAREAID=@P1) AND (NUMBERSEQUENCE=@P2)) )

Can anyone please guide me how can I identify the issue and how to solve these blocking and slowness.

Thanks in advance.

Indrachapa.