diff --git a/modules/castbar.lua b/modules/castbar.lua
index ea6d33ae..1030c01c 100644
--- a/modules/castbar.lua
+++ b/modules/castbar.lua
@@ -66,7 +66,12 @@ pfUI:RegisterModule("castbar", "vanilla", function ()
     cb.bar.lag:SetPoint("BOTTOMRIGHT", cb.bar, "BOTTOMRIGHT", 0, 0)
     cb.bar.lag:SetTexture(1,.2,.2,.2)
 
+    -- OnUpdate script with throttle for performance optimization
     cb:SetScript("OnUpdate", function()
+      -- Throttle for performance
+      if (this.tick or 0) > GetTime() then return end
+      this.tick = GetTime() + 0.025 -- ~60 FPS for smooth castbar
+      
       if this.drag and this.drag:IsShown() then
         this:SetAlpha(1)
         return
diff --git a/modules/player.lua b/modules/player.lua
index 59979fff..0c1480b5 100644
--- a/modules/player.lua
+++ b/modules/player.lua
@@ -11,6 +11,16 @@ pfUI:RegisterModule("player", "vanilla:tbc", function ()
   pfUI.uf.player:SetPoint("BOTTOMRIGHT", UIParent, "BOTTOM", -75, 125)
   UpdateMovable(pfUI.uf.player)
 
+  -- Add throttle to player frame OnUpdate
+  if pfUI.uf.player:GetScript("OnUpdate") then
+    local originalOnUpdate = pfUI.uf.player:GetScript("OnUpdate")
+    pfUI.uf.player:SetScript("OnUpdate", function()
+      if (this.tick or 0) > GetTime() then return end
+      this.tick = GetTime() + 0.1
+      originalOnUpdate()
+    end)
+  end
+
   -- Replace default's RESET_INSTANCES button with an always working one
   UnitPopupButtons["RESET_INSTANCES_FIX"] = { text = RESET_INSTANCES, dist = 0 }
   for id, text in pairs(UnitPopupMenus["SELF"]) do
@@ -25,4 +35,4 @@ pfUI:RegisterModule("player", "vanilla:tbc", function ()
       StaticPopup_Show("CONFIRM_RESET_INSTANCES")
     end
   end)
-end)
+end)
\ No newline at end of file
diff --git a/modules/raid.lua b/modules/raid.lua
index 6c5f4c6f..69f271cd 100644
--- a/modules/raid.lua
+++ b/modules/raid.lua
@@ -89,7 +89,7 @@ pfUI:RegisterModule("raid", "vanilla:tbc", function ()
   pfUI.uf.raid:SetScript("OnUpdate", function()
     -- Throttle raid roster updates to 5 FPS
     if (this.tick or 0) > GetTime() then return end
-    this.tick = GetTime() + 0.2
+    this.tick = GetTime() + 0.25
 
     -- don't proceed without raid or during combat
     if not UnitInRaid("player") or (InCombatLockdown and InCombatLockdown()) then return end