If you're requesting all the rows, all the columns from a table there is no practical way to optimise the query. It may take some time if the table is large. How many rows are in that table? Why are you selecting every single column, every single row from that table? Do you really need all of that?
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability