[TM prolly] Some init optimisationss (#23800)

* [TM prolly] Some init optimisationss

* Do this as well

* Sod it some runtime optimisations as well

code/modules/mob/living/carbon/human/appearance.dm

@@ -214,7 +214,7 @@
 		H.ha_style = "None"
 	update_head_accessory()
 
-/mob/living/carbon/human/proc/change_eye_color(colour = "#000000", update_dna = TRUE)
+/mob/living/carbon/human/proc/change_eye_color(colour = "#000000", update_dna = TRUE, skip_icons = FALSE)
 	// Update the main DNA datum, then sync the change across the organs
 	var/obj/item/organ/internal/eyes/eyes_organ = get_int_organ(/obj/item/organ/internal/eyes)
 	if(eyes_organ)
@@ -227,9 +227,11 @@
 
 	if(update_dna)
 		update_dna()
+
 	sync_organ_dna(assimilate = FALSE)
-	update_eyes()
-	update_body()
+	if(!skip_icons)
+		update_eyes()
+		update_body()
 	return TRUE
 
 /mob/living/carbon/human/proc/get_eye_color()

code/modules/mob/living/carbon/human/human_mob.dm

@@ -1450,10 +1450,9 @@
 
 	if(!delay_icon_update)
 		UpdateAppearance()
-
-	overlays.Cut()
-	update_mutantrace()
-	regenerate_icons()
+		overlays.Cut()
+		update_mutantrace()
+		regenerate_icons()
 
 	if(dna.species)
 		return TRUE