Avoid Multiple source reads in SSIS

Hi ,

  I am new to SSIS. I have 5 tables which populates the data for 7 Dimensions. The source tables are huge so the table scans are taking too long. Is there anyway so that I can read those 5 tables only once and use them for multiple dimensions instead of reading the same table twice or thrice?

Regards,

Venkata Koppula