This is for future me as well ;) Source listed below.
Disable wireless drivers:
Disable loading the drivers for bluetooth and WiFi. As well as reducing the number of interfaces it may reduce power usage.
# cat > /etc/modprobe.d/raspi-blacklist.conf <<EOF
# WiFi
blacklist brcmfmac
blacklist brcmutil
# Bluetooth
blacklist btbcm
blacklist hci_uart
EOF
Disable bluetooth:
The bluetooth service is not required
# systemctl disable bluetooth
# systemctl stop bluetooth
Disable avahi:
The Pi is going to use simple uni-cast DNS - multi-cast DNS support is not required.
# systemctl disable avahi-daemon
# systemctl stop avahi-daemon
Disable TriggerHappy:
The Pi isn't being used with button. Disable the TriggerHappy daemon (not[e] that it is a init.d service)
# systemctl disable triggerhappy
# systemctl stop triggerhappy
source: https://plone.lucidsolutions.co.nz/hardware/raspberry-pi/3/disable-unwanted-raspbian-services
unneeded
mean? What makes you think that disabling services will help your rpi be more responsive? – abolotnov Oct 12 '19 at 1:32