Distributed Query Doing Inserts -----Very Slow

Below given query is being executed on a Sql 2k box with 4CPU and 2GB RAM
testXX.DB_GRP.dbo.group1-----> is a sql 7 box with single CPU and 512MB RAM
The result set is abt 30,000 rows .
This whole Process is taking abt 5 mins to do the Insert Process.
Is there a way to optimise the query and bring down the execution time


insert into testXX.DB_GRP.dbo.group1
select num, group_num,group_desc from group2
where id = 20

---------------
If we just run the
select num, group_num,group_desc from group2
where id = 20

it takes 10 secs to execute this selct statement so i was wondering why it takes 5 mins to do the insert process across the network thru linked server query.

Any help would be appreciated?

Thanks,

MK