diff --git a/i.sh b/i.sh
index 7d84cc2..f1683a6 100644
--- a/i.sh
+++ b/i.sh
@@ -97,6 +97,16 @@ mkdir -p /root/.config/fish
 
 ## Bugfix: reserve 512MB memory for system
 echo "vm.min_free_kbytes = 524288" >> /etc/sysctl.conf
+echo "net.ipv4.tcp_mem=1280000 1280000 1280000" >> /etc/sysctl.conf
+echo "net.ipv4.tcp_wmem = 32768 131072 1280000" >> /etc/sysctl.conf
+echo "net.ipv4.tcp_rmem = 32768 131072 1280000" >> /etc/sysctl.conf
+echo "net.core.rmem_max=16777216" >> /etc/sysctl.conf
+echo "net.core.wmem_max=16777216" >> /etc/sysctl.conf
+echo "net.core.rmem_default=16777216" >> /etc/sysctl.conf
+echo "net.core.wmem_default=16777216" >> /etc/sysctl.conf
+echo "net.core.optmem_max=1524288" >> /etc/sysctl.conf
+echo "net.ipv4.tcp_sack=0" >> /etc/sysctl.conf
+echo "net.ipv4.tcp_timestamps=0" >> /etc/sysctl.conf
 sysctl -p
 
 ## Remove subscription banner