perf: compact only if needed

inferium-harvester.lua

@@ -1,9 +1,10 @@
 local turtleUtils = require('libs/turtle-utils')
 local config = require('config/harvesting')
 
-local VERSION = "0.3.0"
+local VERSION = "0.3.1"
 local IDLE_TIME = 2
 local MIN_FUEL_NEEDED = (10 + config.firstCropZ + config.length) * 2
+local MIN_FREE_SLOTS_BEFORE_COMPACT = 4
 
 -- UTILS
 
@@ -128,8 +129,10 @@ local function harvestDown()
     error('turtle cannot place crop')
   end
 
+  if turtleUtils.countFreeSlots() < MIN_FREE_SLOTS_BEFORE_COMPACT then
     turtleUtils.compactInventory()
   end
+end
 
 local function forward()
   if not turtle.forward() then