Enable Write-Ahead Logging (WAL) for SQLite to improve performance when using it.

photo21/settings.py

@@ -129,6 +129,9 @@ DATABASES = {
     "default": {
         "ENGINE": "django.db.backends.sqlite3",
         "NAME": os.path.join(BASE_DIR, "db.sqlite3"),
+        "OPTIONS": {
+            "timeout": 10,
+        },
     }
 }