Removes a bunch of sleeps/spawns and makes a few booleans defines

code/modules/power/antimatter/control.dm

@@ -260,17 +260,15 @@
 			if(AMS.processing)
 				AMS.shutdown_core()
 			AMS.control_unit = null
-			spawn(10)
-				AMS.controllerscan()
+			addtimer(CALLBACK(AMS, /obj/machinery/am_shielding.proc/controllerscan), 10)
 		linked_shielding = list()
-
 	else
 		for(var/obj/machinery/am_shielding/AMS in linked_shielding)
 			AMS.update_icon()
-	spawn(20)
-		shield_icon_delay = 0
-	return
+	addtimer(CALLBACK(src, .proc/reset_shield_icon_delay), 20)
 
+/obj/machinery/power/am_control_unit/proc/reset_shield_icon_delay()
+	shield_icon_delay = 0
 
 /obj/machinery/power/am_control_unit/proc/check_core_stability()
 	if(stored_core_stability_delay || linked_cores.len <= 0)
@@ -280,10 +278,10 @@
 	for(var/obj/machinery/am_shielding/AMS in linked_cores)
 		stored_core_stability += AMS.stability
 	stored_core_stability/=linked_cores.len
-	spawn(40)
-		stored_core_stability_delay = 0
-	return
+	addtimer(CALLBACK(src, .proc/reset_stored_core_stability_delay), 40)
 
+/obj/machinery/power/am_control_unit/proc/reset_stored_core_stability_delay()
+	stored_core_stability_delay = 0
 
 /obj/machinery/power/am_control_unit/interact(mob/user)
 	if((get_dist(src, user) > 1) || (stat & (BROKEN|NOPOWER)))

code/modules/power/cable.dm

@@ -399,6 +399,11 @@ By design, d1 is the smallest direction and d2 is the highest
 		if(PN.is_empty()) //can happen with machines made nodeless when smoothing cables
 			qdel(PN)
 
+/obj/structure/cable/proc/auto_propogate_cut_cable(obj/O)
+	if(O && !QDELETED(O))
+		var/datum/powernet/newPN = new()// creates a new powernet...
+		propagate_network(O, newPN)//... and propagates it to the other side of the cable
+
 // cut the cable's powernet at this cable and updates the powergrid
 /obj/structure/cable/proc/cut_cable_from_powernet(remove=TRUE)
 	var/turf/T1 = loc
@@ -426,10 +431,7 @@ By design, d1 is the smallest direction and d2 is the highest
 		loc = null
 	powernet.remove_cable(src) //remove the cut cable from its powernet
 
-	spawn(0) //so we don't rebuild the network X times when singulo/explosion destroys a line of X cables
-		if(O && !QDELETED(O))
-			var/datum/powernet/newPN = new()// creates a new powernet...
-			propagate_network(O, newPN)//... and propagates it to the other side of the cable
+	addtimer(CALLBACK(src, .proc/auto_propogate_cut_cable, O), 0) //so we don't rebuild the network X times when singulo/explosion destroys a line of X cables
 
 	// Disconnect machines connected to nodes
 	if(d1 == 0) // if we cut a node (O-X) cable