bug fixes, speed potion and layering

code/modules/reagents/chemistry/machinery/chem_dispenser.dm

@@ -465,7 +465,7 @@
 	has_panel_overlay = FALSE
 	amount = 10
 	pixel_y = 6
-	layer = WALL_OBJ_LAYER
+	layer = 4
 	circuit = /obj/item/circuitboard/machine/chem_dispenser/drinks
 	working_state = null
 	nopower_state = null

code/modules/research/xenobiology/xenobiology.dm

@@ -854,10 +854,10 @@
 		var/obj/vehicle/V = C
 		var/datum/component/riding/R = V.GetComponent(/datum/component/riding)
 		if(R)
-			if(R.vehicle_move_delay <= 1 )
+			if(R.vehicle_move_delay <= 2 )
 				to_chat(user, "<span class='warning'>The [C] can't be made any faster!</span>")
 				return ..()
-			R.vehicle_move_delay = 1
+			R.vehicle_move_delay = 2
 
 	to_chat(user, "<span class='notice'>You slather the red gunk over the [C], making it faster.</span>")
 	C.remove_atom_colour(WASHABLE_COLOUR_PRIORITY)