diff -Nru initramfs-tools-0.140ubuntu12/debian/changelog initramfs-tools-0.140ubuntu13/debian/changelog
--- initramfs-tools-0.140ubuntu12/debian/changelog	2022-02-08 21:43:02.000000000 +0100
+++ initramfs-tools-0.140ubuntu13/debian/changelog	2022-03-01 15:20:26.000000000 +0100
@@ -1,3 +1,9 @@
+initramfs-tools (0.140ubuntu13) jammy; urgency=medium
+
+  * Lower zstd compression level from 19 to 9 to save CPU time (LP: #1958148) 
+
+ -- Heinrich Schuchardt <heinrich.schuchardt@canonical.com>  Tue, 01 Mar 2022 15:20:26 +0100
+
 initramfs-tools (0.140ubuntu12) jammy; urgency=medium
 
   * Force copy pthread and libgcc_s libraries via a stub binary.
diff -Nru initramfs-tools-0.140ubuntu12/mkinitramfs initramfs-tools-0.140ubuntu13/mkinitramfs
--- initramfs-tools-0.140ubuntu12/mkinitramfs	2022-02-08 21:43:02.000000000 +0100
+++ initramfs-tools-0.140ubuntu13/mkinitramfs	2022-03-01 15:20:24.000000000 +0100
@@ -193,7 +193,7 @@
 	fi
 	;;
 lz4)	compress="lz4 -9 -l" ;;
-zstd)	compress="zstd -q -19 -T0" ;;
+zstd)	compress="zstd -q -9 -T0" ;;
 xz)	compress="xz --check=crc32"
 	# If we're not doing a reproducible build, enable multithreading
 	test -z "${SOURCE_DATE_EPOCH}" && compress="$compress --threads=0"