diff --git a/excel_import_export/models/xlsx_export.py b/excel_import_export/models/xlsx_export.py
index 95749b869..fcc2512a5 100644
--- a/excel_import_export/models/xlsx_export.py
+++ b/excel_import_export/models/xlsx_export.py
@@ -200,9 +200,7 @@ class XLSXExport(models.AbstractModel):
                 # Insert rows to preserve total line
                 if not rows_inserted:
                     rows_inserted = True
-                    if row_count > 1:
-                        for _x in range(row_count-1):
-                            st.insert_rows(row+1)
+                    st.insert_rows(row+1, amount=row_count-1)
                 # --
                 for (row_val, style) in vals[field]:
                     new_row = row + i
diff --git a/excel_import_export/readme/HISTORY.rst b/excel_import_export/readme/HISTORY.rst
index 58745034f..c6e2a27cf 100644
--- a/excel_import_export/readme/HISTORY.rst
+++ b/excel_import_export/readme/HISTORY.rst
@@ -1,3 +1,8 @@
+12.0.1.0.5 (2019-12-19)
+~~~~~~~~~~~~~~~~~~~~~~~
+
+* Speed up export when dealing with many rows
+
 12.0.1.0.4 (2019-08-28)
 ~~~~~~~~~~~~~~~~~~~~~~~