This bug orrucs only when using the mod Jetpack (https://mods.factorio.com/mod/jetpack) by Earendel.
When I'm flying near an area that needs repairs on some buildings, the drones swarm out with repair packs but on a very slow speed, much slower than on the standard running speed. They eventually reset their speed after having done some repair action. But as they swarm out far away from the action spot it takes them forever to arrive.
They also slow down when beeing deployed and you start using the Jetpack then.
It would be nice to have this issues solved. Thank you in advance.
Best regards,
r-kane