Hosting your own execution client can consume hundreds of gigabytes of data per day. Because data plans can be limited or costly, you might desire to slow down data usage but still maintain good connectivity to the network.
Edit your execution.service unit file.
sudo nano /etc/systemd/system/execution.service
Add the following flag to limit the number of peers on the ExecStart line.
--maxpeers 10
# Example
# ExecStart=/usr/local/bin/geth --maxpeers 10
--max-peers 10
# Example
# ExecStart=/usr/local/bin/besu/bin/besu --max-peers 10
--Network.MaxActivePeers 10
# Example
# ExecStart=/usr/local/bin/nethermind/Nethermind.Runner --Network.MaxActivePeers 10
--maxpeers 10
# Example
# ExecStart=/usr/local/bin/erigon --maxpeers 10