diff --git a/frappe/core/doctype/prepared_report/prepared_report.py b/frappe/core/doctype/prepared_report/prepared_report.py
index 2c8fdc2e05..8a0e48251f 100644
--- a/frappe/core/doctype/prepared_report/prepared_report.py
+++ b/frappe/core/doctype/prepared_report/prepared_report.py
@@ -242,7 +242,7 @@ def create_json_gz_file(data, dt, dn, report_name):
 		frappe.scrub(report_name), frappe.utils.data.format_datetime(frappe.utils.now(), "Y-m-d-H-M")
 	)
 	encoded_content = frappe.safe_encode(frappe.as_json(data, indent=None, separators=(",", ":")))
-	compressed_content = gzip.compress(encoded_content)
+	compressed_content = gzip.compress(encoded_content, compresslevel=5)
 
 	# Call save() file function to upload and attach the file
 	_file = frappe.get_doc(
diff --git a/frappe/deprecation_dumpster.py b/frappe/deprecation_dumpster.py
index 91aac5526f..6f6e743620 100644
--- a/frappe/deprecation_dumpster.py
+++ b/frappe/deprecation_dumpster.py
@@ -306,7 +306,7 @@ def read_multi_pdf(output) -> bytes:
 
 
 @deprecated("frappe.gzip_compress", "unknown", "v17", "Use py3 methods directly (this was compat for py2).")
-def gzip_compress(data, compresslevel=9):
+def gzip_compress(data, compresslevel=5):
 	"""Compress data in one shot and return the compressed string.
 	Optional argument is the compression level, in range of 0-9.
 	"""