diff --git a/sysctl.conf b/sysctl.conf
index dacbeb7..c606c62 100644
--- a/sysctl.conf
+++ b/sysctl.conf
@@ -3,7 +3,7 @@
 # Contributor: IceCodeNew
 # Contributor: HorlogeSkynet
 # Date Created: October 5, 2020
-# Last Updated: June 7, 2021
+# Last Updated: October 12, 2021
 
 # Licensed under the GNU General Public License Version 3 (GNU GPL v3),
 #   available at: https://www.gnu.org/licenses/gpl-3.0.txt
@@ -215,6 +215,11 @@ net.ipv4.ip_local_port_range = 1024 65535
 # - 2: enable timestamps without random offsets
 net.ipv4.tcp_timestamps = 0
 
+# SSR could impact TCP's performance on a fixed-speed network (e.g., wired)
+#   but it could be helpful on a variable-speed network (e.g., LTE)
+# uncomment this if you are on a fixed-speed network
+#net.ipv4.tcp_slow_start_after_idle = 0
+
 # enabling SACK can increase the throughput
 # but SACK is commonly exploited and rarely used
 net.ipv4.tcp_sack = 0