diff --git a/.envrc b/.envrc
index 672c57b..514e4a6 100644
--- a/.envrc
+++ b/.envrc
@@ -1,4 +1,5 @@
 layout poetry
+export LINE_PROFILE=1
 export MAIL_PASSWORD="ewacyay5seu2qske"
 export MAIL_PORT=587
 export MAIL_SERVER="smtp.fastmail.com"
diff --git a/app/models.py b/app/models.py
index cedbc7e..7082b06 100644
--- a/app/models.py
+++ b/app/models.py
@@ -8,6 +8,7 @@ import sys
 # PyQt imports
 
 # Third party imports
+import line_profiler
 from sqlalchemy import (
     bindparam,
     delete,
@@ -563,6 +564,7 @@ class PlaylistRows(dbtables.PlaylistRowsTable):
         )
 
     @staticmethod
+    @line_profiler.profile
     def update_plr_row_numbers(
         session: Session, playlist_id: int, sqla_map: List[dict[str, int]]
     ) -> None:
diff --git a/app/musicmuster.py b/app/musicmuster.py
index 800eb1e..0cc3cb0 100755
--- a/app/musicmuster.py
+++ b/app/musicmuster.py
@@ -44,6 +44,7 @@ from PyQt6.QtWidgets import (
 )
 
 # Third party imports
+import line_profiler
 import pipeclient
 from pygame import mixer
 from sqlalchemy.exc import IntegrityError
@@ -1068,7 +1069,8 @@ class Window(QMainWindow, Ui_MainWindow):
         else:
             webbrowser.get("browser").open_new_tab(url)
 
-    def paste_rows(self) -> None:
+    @line_profiler.profile
+    def paste_rows(self, dummy_for_profiling=None) -> None:
         """
         Paste earlier cut rows.
         """
diff --git a/app/playlistmodel.py b/app/playlistmodel.py
index 76f3e53..0a3a06a 100644
--- a/app/playlistmodel.py
+++ b/app/playlistmodel.py
@@ -26,6 +26,7 @@ from PyQt6.QtGui import (
 )
 
 # Third party imports
+import line_profiler
 import obswebsocket  # type: ignore
 
 # import snoop  # type: ignore
@@ -736,7 +737,8 @@ class PlaylistModel(QAbstractTableModel):
         self.update_track_times()
         self.invalidate_rows(row_numbers)
 
-    def move_rows(self, from_rows: list[int], to_row_number: int) -> None:
+    @line_profiler.profile
+    def move_rows(self, from_rows: list[int], to_row_number: int, dummy_for_profiling=None) -> None:
         """
         Move the playlist rows given to to_row and below.
         """
@@ -986,7 +988,8 @@ class PlaylistModel(QAbstractTableModel):
         # Update display
         self.invalidate_row(track_sequence.previous.row_number)
 
-    def refresh_data(self, session: db.session) -> None:
+    @line_profiler.profile
+    def refresh_data(self, session: db.session, dummy_for_profiling=None) -> None:
         """Populate dicts for data calls"""
 
         # Populate self.playlist_rows with playlist data