SpeedUp my filling command with foxpro table

[Frush]

hi, I made my self a class that fill a dataset and send it back. Been using this for a while now but I need it to be faster. I have to acces a database with 150000 rows and return them all. In foxpro it takes 0.00 second to return the data in VB.NET it takes 5minutes

Public Sub New(ByVal leRepertoire As String)
retry_timeout = 0
Me.m_conn = New OleDbConnection("Provider=VFPOLEDB.1;Data Source=" & leRepertoire & ";Mode=Share Deny None;Extended Properties="""";User ID="""";Password="""";Mask Password=False;Cache Authentication=False;Encrypt Password=False;Collating Sequence=MACHINE;DSN="""" ")
End Sub

'Fonction qui permet de faire une requete
'Retour: le dataset avec les données
Public Function getDS(ByVal requete As String) As DataSet
Try
retry_timeout += 1
Dim maCommandeOLEdb As OleDbDataAdapter 'le data adapter
Dim tmpDS As New DataSet 'le dataset

'Rempli de dataset Foxpro
maCommandeOLEdb = New OleDbDataAdapter(requete, m_conn)
maCommandeOLEdb.Fill(tmpDS) <<<< this takes for ever

if anyone got suggestion and changing my Select query aint a solution for what I need.. please let me know