As I mentioned in another thread, because it's buggy and kind of a hack - I'm not fond of invisible power poles that are added and removed by script, they break fairly easily. If they are actually used I could add them back with a setting, but I wanted to reduce the complexity of this fairly complex mod.
I can increase the max updates per tick, however it doesn't sound like it does what you want it to - the mod setting for this mod changes how many roboports are upgraded per tick, not anything to do with bots. The bot capacity upgrades are handled completely by vanilla Factorio.
If you want construction bot update speed, there's a great mod for that: https://mods.factorio.com/mod/DynamicConstructionQueue
For roboport upgrade speed, I think the intention is to not completely kill your power network - upgrading 1000 roboports in a tick could probably be handled fine by the game engine