diff --git a/mods/unitframes-energy-tick.lua b/mods/unitframes-energy-tick.lua
index 0033b4f..6a668ef 100644
--- a/mods/unitframes-energy-tick.lua
+++ b/mods/unitframes-energy-tick.lua
@@ -1,85 +1,88 @@
-local T = ShaguTweaks.T
-
-local module = ShaguTweaks:register({
-  title = T["Unit Frame Energy & Mana Tick"],
-  description = T["Adds an energy & mana tick to the player frame."],
-  expansions = { ["vanilla"] = true },
-  category = T["Unit Frames"],
-  enabled = nil,
-})
-
-module.enable = function(self)
-  local energytick = CreateFrame("Frame", nil, PlayerFrameManaBar)
-  energytick:SetAllPoints(PlayerFrameManaBar)
-  energytick:RegisterEvent("PLAYER_ENTERING_WORLD")
-  energytick:RegisterEvent("UNIT_DISPLAYPOWER")
-  energytick:RegisterEvent("UNIT_ENERGY")
-  energytick:RegisterEvent("UNIT_MANA")
-  energytick:SetScript("OnEvent", function()
-    if UnitPowerType("player") == 0 then
-      this.mode = "MANA"
-      -- hide if full mana and not in combat
-      if (UnitMana("player") == UnitManaMax("player")) and (not UnitAffectingCombat("player")) then
-        this:Hide()
-      else
-        this:Show()
-      end
-    elseif UnitPowerType("player") == 3 then
-      this.mode = "ENERGY"
-      this:Show()
-    else
-      this:Hide()
-    end
-
-    if event == "PLAYER_ENTERING_WORLD" then
-      this.lastMana = UnitMana("player")
-    end
-
-    if (this.mode == "ENERGY") or ((event == "UNIT_MANA" or event == "UNIT_ENERGY") and arg1 == "player") then
-      this.currentMana = UnitMana("player")
-      local diff = 0
-      if this.lastMana then
-        diff = this.currentMana - this.lastMana
-      end
-
-      if this.mode == "MANA" and diff < 0 then
-        this.target = 5
-      elseif this.mode == "MANA" and diff > 0 then
-        if this.max ~= 5 and diff > (this.badtick and this.badtick*1.2 or 5) then
-          this.target = 2
-        else
-          this.badtick = diff
-        end
-      elseif this.mode == "ENERGY" and diff >= 0 then
-        this.target = 2
-      end
-      this.lastMana = this.currentMana
-    end
-  end)
-
-local pheight, pwidth = PlayerFrameManaBar:GetHeight(), PlayerFrameManaBar:GetWidth()
-energytick:SetScript("OnUpdate", function()
-  if this.target then
-    this.start, this.max = GetTime(), this.target
-    this.target = nil
-  end
-
-  if not this.start then return end
-
-  this.current = GetTime() - this.start
-
-  if this.current > this.max then
-    this.start, this.max, this.current = GetTime(), 2, 0
-  end
-
-  local pos = (pwidth ~= "-1" and pwidth or width) * (this.current / this.max)
-  if not pheight then return end
-  this.spark:SetPoint("LEFT", pos-((pheight+5)/2), 0)
-end)
-
-  energytick.spark = energytick:CreateTexture(nil, 'OVERLAY')
-  energytick.spark:SetTexture("Interface\\CastingBar\\UI-CastingBar-Spark")
-  energytick.spark:SetHeight(pheight + 10)
-  energytick.spark:SetWidth(pheight + 4)
-  energytick.spark:SetBlendMode('ADD')
-end
+local T = ShaguTweaks.T
+
+local module = ShaguTweaks:register({
+  title = T["Unit Frame Energy & Mana Tick"],
+  description = T["Adds an energy & mana tick to the player frame."],
+  expansions = { ["vanilla"] = true },
+  category = T["Unit Frames"],
+  enabled = nil,
+})
+
+module.enable = function(self)
+  local energytick = CreateFrame("Frame", nil, PlayerFrameManaBar)
+  energytick:SetAllPoints(PlayerFrameManaBar)
+  energytick:RegisterEvent("PLAYER_ENTERING_WORLD")
+  energytick:RegisterEvent("UNIT_DISPLAYPOWER")
+  energytick:RegisterEvent("UNIT_ENERGY")
+  energytick:RegisterEvent("UNIT_MANA")
+  energytick:SetScript("OnEvent", function()
+    if UnitPowerType("player") == 0 then
+      this.mode = "MANA"
+      -- hide if full mana and not in combat
+      if (UnitMana("player") == UnitManaMax("player")) and (not UnitAffectingCombat("player")) then
+        this:Hide()
+      else
+        this:Show()
+      end
+    elseif UnitPowerType("player") == 3 then
+      this.mode = "ENERGY"
+      this:Show()
+    else
+      this:Hide()
+    end
+
+    if event == "PLAYER_ENTERING_WORLD" then
+      this.lastMana = UnitMana("player")
+    end
+
+    if (this.mode == "ENERGY") or ((event == "UNIT_MANA" or event == "UNIT_ENERGY") and arg1 == "player") then
+      this.currentMana = UnitMana("player")
+      local diff = 0
+      if this.lastMana then
+        diff = this.currentMana - this.lastMana
+      end
+
+      if this.mode == "MANA" and diff < 0 then
+        this.target = 5
+      elseif this.mode == "MANA" and diff > 0 then
+        if this.max ~= 5 and diff > (this.badtick and this.badtick*1.2 or 5) then
+          this.target = 2
+        else
+          this.badtick = diff
+        end
+      elseif this.mode == "ENERGY" and diff >= 0 then
+        this.target = 2
+      end
+      this.lastMana = this.currentMana
+    end
+  end)
+
+  local pheight, pwidth = PlayerFrameManaBar:GetHeight(), PlayerFrameManaBar:GetWidth()
+  energytick:SetScript("OnUpdate", function()
+    if this.target then
+      this.max = this.target
+      this.current = 0
+      this.target = nil
+    end
+
+    if not this.max then return end
+
+    -- OnUpdate already provides the exact elapsed frame time. Accumulating arg1
+    -- keeps the spark just as smooth without querying GetTime() every frame.
+    this.current = (this.current or 0) + arg1
+
+    if this.current > this.max then
+      this.max, this.current = 2, 0
+    end
+
+    local pos = (pwidth ~= "-1" and pwidth or width) * (this.current / this.max)
+    if not pheight then return end
+    this.spark:SetPoint("LEFT", pos-((pheight+5)/2), 0)
+  end)
+
+  energytick.spark = energytick:CreateTexture(nil, 'OVERLAY')
+  energytick.spark:SetTexture("Interface\\CastingBar\\UI-CastingBar-Spark")
+  energytick.spark:SetHeight(pheight + 10)
+  energytick.spark:SetWidth(pheight + 4)
+  energytick.spark:SetBlendMode('ADD')
+end