How to raycast without a delay?

I'm making a gun with raycasting and there's a delay when I fire the remote event. How do I fix this?

i hope your not exaggerating. But if its really that slow, paste this code in a local script and make sure the local script is somewhere like starter player scripts

local runService = game:GetService("RunService")

local frameCount = 0
local function update()
	frameCount += 1
end

runService.RenderStepped:Connect(update)
	


local fps = 0 -- Updates every second
while wait(1) do
	fps = frameCount
	frameCount = 0
	print(fps)
	end

if you make it a server scritps, it tells you tps which isnt that much different but still fps is more useful so make it local script because that way you can spot more problems. Maybe u have potato computer? or maybe you live far away from roblox hardware servers? or maybe theres so many parts in ur game that its lagging the game a lot like that.