1. WATCH the ABAP code in transfer and update rules;
2. load BALANCE on different servers
3. indexes on source tables
4. use fixed length files if U load data from flat files and put the file on the application server.
5. use CONTENT extractor
6. use PSA and data target inparallel OPTION in the info package
7. start several info packagers parallel with different selection options
8. buffer the SID number ranges if u load lot of data at once
9. load master data before loading transaction data.

1. watch the ABAP code in transfer and update rules;
2. load balance on different servers
3. indexes on source tables
4. use fixed length files if u load data from flat files and put the file on the application server.
5. use content extractor
6. use PSA and data target inparallel option in the info package
7. start several info packagers parallel with different selection options
8. buffer the SID number ranges if u load lot of data at once
9. load master data before loading transaction data.