overuse of the sentence ".Select" to perform various functions makes my program is slow

Greetings all,

I am conducting a financial program in VBA to estimate changes in securities, however overuse of the sentence. "Select" to perform various functions makes my program is slow. An example of this is the routine I use to copy the titles from one sheet to another.

Sub CopiarTitulos()
'Contar columnas en pestanna DVPrecios
    ultColumna = Sheets("DVPrecios").Cells(5, Columns.Count).End(xlToLeft).Column
   Sheets("DVVariaciones").Cells(1, "C") = ultColumna
   Sheets("DVVariaciones").Select
   Range("C5").Activate
    i = 3
'Fin Contar columnas en pestanna DVPrecios
  
'Copiar titulos en DVVariaciones
  While ultColumna >= i
    ActiveCell.FormulaR1C1 = "=IF(DVPrecios!RC<>""VALOR LIBROS"",DVPrecios!RC,"""")"
    Selection.Copy
    Selection.PasteSpecial Paste:=xlPasteValues, Operation:=xlNone, SkipBlanks _
        :=False, Transpose:=False
    If Selection.Value = "" Then Selection.Delete Shift:=xlToLeft
    ActiveCell.Offset(0, 1).Select
    i = i + 1
Wend

Range("C5").Select
Cells.EntireColumn.AutoFit
' Fin Copiar titulos en DVVariaciones
End Sub

This code works but if I have to copy the program 5,000 titles takes around 40 minutes to run. Please tell me how else I can write the code for me to select a specific cell and copy and paste the value or perform the various actions that need.

Excuse my translation errors. My English is very bad