diff --git a/code/game/objects/effects/aliens.dm b/code/game/objects/effects/aliens.dm
index 9fdbd663d65..fc13cd479be 100644
--- a/code/game/objects/effects/aliens.dm
+++ b/code/game/objects/effects/aliens.dm
@@ -7,6 +7,10 @@
  *		effect/acid
  */
 
+#define WEED_NORTH_EDGING "north"
+#define WEED_SOUTH_EDGING "south"
+#define WEED_EAST_EDGING "east"
+#define WEED_WEST_EDGING "west"
 
 /obj/structure/alien
 	icon = 'icons/mob/alien.dmi'
@@ -167,6 +171,7 @@
 	layer = 2
 	var/health = 15
 	var/obj/structure/alien/weeds/node/linked_node = null
+	var/static/list/weedImageCache
 
 
 /obj/structure/alien/weeds/New(pos, node)
@@ -251,22 +256,31 @@
 /obj/structure/alien/weeds/proc/updateWeedOverlays()
 
 	overlays.Cut()
+
+	if(!weedImageCache || !weedImageCache.len)
+		weedImageCache = list()
+		weedImageCache.len = 4
+		weedImageCache[WEED_NORTH_EDGING] = image('icons/mob/alien.dmi', "weeds_side_n", layer=2.11, pixel_y = -32)
+		weedImageCache[WEED_SOUTH_EDGING] = image('icons/mob/alien.dmi', "weeds_side_s", layer=2.11, pixel_y = 32)
+		weedImageCache[WEED_EAST_EDGING] = image('icons/mob/alien.dmi', "weeds_side_e", layer=2.11, pixel_x = -32)
+		weedImageCache[WEED_WEST_EDGING] = image('icons/mob/alien.dmi', "weeds_side_w", layer=2.11, pixel_x = 32)
+
 	var/turf/N = get_step(src, NORTH)
 	var/turf/S = get_step(src, SOUTH)
 	var/turf/E = get_step(src, EAST)
 	var/turf/W = get_step(src, WEST)
 	if(!locate(/obj/structure/alien) in N.contents)
 		if(istype(N, /turf/simulated/floor))
-			src.overlays += image('icons/mob/alien.dmi', "weeds_side_s", layer=2.11, pixel_y = 32)
+			overlays += weedImageCache[WEED_SOUTH_EDGING]
 	if(!locate(/obj/structure/alien) in S.contents)
 		if(istype(S, /turf/simulated/floor))
-			src.overlays += image('icons/mob/alien.dmi', "weeds_side_n", layer=2.11, pixel_y = -32)
+			overlays += weedImageCache[WEED_NORTH_EDGING]
 	if(!locate(/obj/structure/alien) in E.contents)
 		if(istype(E, /turf/simulated/floor))
-			src.overlays += image('icons/mob/alien.dmi', "weeds_side_w", layer=2.11, pixel_x = 32)
+			overlays += weedImageCache[WEED_WEST_EDGING]
 	if(!locate(/obj/structure/alien) in W.contents)
 		if(istype(W, /turf/simulated/floor))
-			src.overlays += image('icons/mob/alien.dmi', "weeds_side_e", layer=2.11, pixel_x = -32)
+			overlays += weedImageCache[WEED_EAST_EDGING]
 
 
 /obj/structure/alien/weeds/proc/fullUpdateWeedOverlays()
@@ -494,4 +508,9 @@
 
 	spawn(1)
 		if(src)
-			tick()
\ No newline at end of file
+			tick()
+
+#undef WEED_NORTH_EDGING
+#undef WEED_SOUTH_EDGING
+#undef WEED_EAST_EDGING
+#undef WEED_WEST_EDGING
\ No newline at end of file
diff --git a/code/modules/mining/mine_turfs.dm b/code/modules/mining/mine_turfs.dm
index 451271a5f5e..d68eefd448e 100644
--- a/code/modules/mining/mine_turfs.dm
+++ b/code/modules/mining/mine_turfs.dm
@@ -1,5 +1,11 @@
 /**********************Mineral deposits**************************/
 
+var/global/list/rockTurfEdgeCache
+#define NORTH_EDGING	"north"
+#define SOUTH_EDGING	"south"
+#define EAST_EDGING		"east"
+#define WEST_EDGING		"west"
+
 /turf/simulated/mineral //wall piece
 	name = "rock"
 	icon = 'icons/turf/mining.dmi'
@@ -32,25 +38,32 @@
 	return
 
 /turf/simulated/mineral/New()
+	if(!rockTurfEdgeCache || !rockTurfEdgeCache.len)
+		rockTurfEdgeCache = list()
+		rockTurfEdgeCache.len = 4
+		rockTurfEdgeCache[NORTH_EDGING] = image('icons/turf/mining.dmi', "rock_side_n", layer = 6)
+		rockTurfEdgeCache[SOUTH_EDGING] = image('icons/turf/mining.dmi', "rock_side_s")
+		rockTurfEdgeCache[EAST_EDGING] = image('icons/turf/mining.dmi', "rock_side_e", layer = 6)
+		rockTurfEdgeCache[WEST_EDGING] = image('icons/turf/mining.dmi', "rock_side_w", layer = 6)
 
 	spawn(1)
 		var/turf/T
 		if((istype(get_step(src, NORTH), /turf/simulated/floor)) || (istype(get_step(src, NORTH), /turf/space)) || (istype(get_step(src, NORTH), /turf/simulated/shuttle/floor)))
 			T = get_step(src, NORTH)
 			if (T)
-				T.overlays += image('icons/turf/mining.dmi', "rock_side_s")
+				T.overlays += rockTurfEdgeCache[SOUTH_EDGING]
 		if((istype(get_step(src, SOUTH), /turf/simulated/floor)) || (istype(get_step(src, SOUTH), /turf/space)) || (istype(get_step(src, SOUTH), /turf/simulated/shuttle/floor)))
 			T = get_step(src, SOUTH)
 			if (T)
-				T.overlays += image('icons/turf/mining.dmi', "rock_side_n", layer=6)
+				T.overlays += rockTurfEdgeCache[NORTH_EDGING]
 		if((istype(get_step(src, EAST), /turf/simulated/floor)) || (istype(get_step(src, EAST), /turf/space)) || (istype(get_step(src, EAST), /turf/simulated/shuttle/floor)))
 			T = get_step(src, EAST)
 			if (T)
-				T.overlays += image('icons/turf/mining.dmi', "rock_side_w", layer=6)
+				T.overlays += rockTurfEdgeCache[WEST_EDGING]
 		if((istype(get_step(src, WEST), /turf/simulated/floor)) || (istype(get_step(src, WEST), /turf/space)) || (istype(get_step(src, WEST), /turf/simulated/shuttle/floor)))
 			T = get_step(src, WEST)
 			if (T)
-				T.overlays += image('icons/turf/mining.dmi', "rock_side_e", layer=6)
+				T.overlays += rockTurfEdgeCache[EAST_EDGING]
 
 	if (mineralType && mineralAmt && spread && spreadChance)
 		for(var/dir in cardinal)
@@ -589,13 +602,13 @@
 	src.overlays.Cut()
 
 	if(istype(get_step(src, NORTH), /turf/simulated/mineral))
-		src.overlays += image('icons/turf/mining.dmi', "rock_side_n")
+		src.overlays += rockTurfEdgeCache[NORTH_EDGING]
 	if(istype(get_step(src, SOUTH), /turf/simulated/mineral))
-		src.overlays += image('icons/turf/mining.dmi', "rock_side_s", layer=6)
+		src.overlays += rockTurfEdgeCache[SOUTH_EDGING]
 	if(istype(get_step(src, EAST), /turf/simulated/mineral))
-		src.overlays += image('icons/turf/mining.dmi', "rock_side_e", layer=6)
+		src.overlays += rockTurfEdgeCache[EAST_EDGING]
 	if(istype(get_step(src, WEST), /turf/simulated/mineral))
-		src.overlays += image('icons/turf/mining.dmi', "rock_side_w", layer=6)
+		src.overlays += rockTurfEdgeCache[WEST_EDGING]
 
 /turf/simulated/mineral/updateMineralOverlays()
 	return
@@ -603,3 +616,9 @@
 /turf/proc/fullUpdateMineralOverlays()
 	for (var/turf/t in range(1,src))
 		t.updateMineralOverlays()
+
+
+#undef NORTH_EDGING
+#undef SOUTH_EDGING
+#undef EAST_EDGING
+#undef WEST_EDGING
\ No newline at end of file
diff --git a/code/modules/power/smes.dm b/code/modules/power/smes.dm
index 20efaea4d8d..e97f5462d7d 100644
--- a/code/modules/power/smes.dm
+++ b/code/modules/power/smes.dm
@@ -3,6 +3,17 @@
 
 #define SMESRATE 0.05			// rate of internal charge to external power
 
+//Cache defines
+#define SMES_CLEVEL_1		1
+#define SMES_CLEVEL_2		2
+#define SMES_CLEVEL_3		3
+#define SMES_CLEVEL_4		4
+#define SMES_CLEVEL_5		5
+#define SMES_OUTPUTTING		6
+#define SMES_NOT_OUTPUTTING 7
+#define SMES_INPUTTING		8
+#define SMES_INPUT_ATTEMPT	9
+
 /obj/machinery/power/smes
 	name = "power storage unit"
 	desc = "A high-capacity superconducting magnetic energy storage (SMES) unit."
@@ -27,6 +38,8 @@
 
 	var/obj/machinery/power/terminal/terminal = null
 
+	var/static/list/smesImageCache
+
 
 /obj/machinery/power/smes/New()
 	..()
@@ -177,18 +190,35 @@
 	if(panel_open)
 		return
 
+	if(!smesImageCache || !smesImageCache.len)
+		smesImageCache = list()
+		smesImageCache.len = 9
 
-	overlays += image('icons/obj/power.dmi', "smes-op[outputting]")
+		smesImageCache[SMES_CLEVEL_1] = image('icons/obj/power.dmi',"smes-og1")
+		smesImageCache[SMES_CLEVEL_2] = image('icons/obj/power.dmi',"smes-og2")
+		smesImageCache[SMES_CLEVEL_3] = image('icons/obj/power.dmi',"smes-og3")
+		smesImageCache[SMES_CLEVEL_4] = image('icons/obj/power.dmi',"smes-og4")
+		smesImageCache[SMES_CLEVEL_5] = image('icons/obj/power.dmi',"smes-og5")
+
+		smesImageCache[SMES_OUTPUTTING] = image('icons/obj/power.dmi', "smes-op1")
+		smesImageCache[SMES_NOT_OUTPUTTING] = image('icons/obj/power.dmi',"smes-op0")
+		smesImageCache[SMES_INPUTTING] = image('icons/obj/power.dmi', "smes-oc1")
+		smesImageCache[SMES_INPUT_ATTEMPT] = image('icons/obj/power.dmi', "smes-oc0")
+
+	if(outputting)
+		overlays += smesImageCache[SMES_OUTPUTTING]
+	else
+		overlays += smesImageCache[SMES_NOT_OUTPUTTING]
 
 	if(inputting)
-		overlays += image('icons/obj/power.dmi', "smes-oc1")
+		overlays += smesImageCache[SMES_INPUTTING]
 	else
 		if(input_attempt)
-			overlays += image('icons/obj/power.dmi', "smes-oc0")
+			overlays += smesImageCache[SMES_INPUT_ATTEMPT]
 
 	var/clevel = chargedisplay()
 	if(clevel>0)
-		overlays += image('icons/obj/power.dmi', "smes-og[clevel]")
+		overlays += smesImageCache[clevel]
 	return
 
 
@@ -420,4 +450,14 @@
 		..()
 
 
-#undef SMESRATE
\ No newline at end of file
+#undef SMESRATE
+
+#undef SMES_CLEVEL_1
+#undef SMES_CLEVEL_2
+#undef SMES_CLEVEL_3
+#undef SMES_CLEVEL_4
+#undef SMES_CLEVEL_5
+#undef SMES_OUTPUTTING
+#undef SMES_NOT_OUTPUTTING
+#undef SMES_INPUTTING
+#undef SMES_INPUT_ATTEMPT
\ No newline at end of file