FPS Booster

local destroymeshes = false -- not reccomended cant bring them back
local destroymeshpart = true -- will not destroy meshes will only destroy MESHPARTS (can bring back)
local removematerial = true -- everytime this is true and ran it will overright the old material (so if you want to keep this but not meshparts set it to false first)

for i,v in pairs(workspace:GetDescendants()) do
   if v.ClassName == "Part" and removematerial == true then
  local oldmat = Instance.new("StringValue", game.ReplicatedStorage)
  oldmat.Name = v.Name
  oldmat.Value = v.Material.Name
 end
end

for i,v in pairs(workspace:GetDescendants()) do
   if v.ClassName == "MeshPart" and destroymeshpart == true then
       v.Transparency = 1
       V.CanCollide = false
       elseif v.ClassName == "MeshPart" and destroymeshpart == false then
         v.Transparency = 0
 V.CanCollide = true
   end
   if v.ClassName == "Part" and removematerial == true then
       v.Material = "Plastic"
   elseif v.ClassName == "Part" and removematerial == false then
       local joe = game.ReplicatedStorage[v.Name]
           v.Material = joe.Value
           joe:Destroy() --deletes the value because there may be thousands of values in replicated storage
   end
   if v.ClassName == "Mesh" and destroymeshes == true then
       V:Destroy()
       end
   end