excel - VBA - Too Slow with With and selection Command. How Can I optimize it better to run faster?

I am selecting a range and using that selection inside the With Command and as you all know, the .Selection command is going to slow down the process. What is the better way to write this code, to run it faster?

Here goes my code:

Sheets(Currentsheetname).Range("A" & SelRowNumber + 1 & ":A" & lastrow).Select


With .Selection.Validation
    .Delete
    .Add Type:=xlValidateList, AlertStyle:=xlValidAlertStop, Operator:= _
               xlBetween, Formula1:="Remove"
    .IgnoreBlank = True
    .InCellDropdown = True
    .InputTitle = ""
    .ErrorTitle = "Warning"
    .InputMessage = ""

    .ErrorMessage = "Please select a value from the list available in the selected cell."
    .ShowInput = True
    .ShowError = True
End With