Problem about blocking web pages

RouterOS Beginner Basics
1

Hello!

First of all, I’m sorry if I opened this topic in wrong place, this is my first post on this forum.

I’m using MikroTik RB2011L-IN (Firmware version 3.0) in office environment. Recently I blocked web pages in /ip>firewall>filter via this command:

add chain=forward src-address=192.168.1.0/24 protocol=tcp content=facebook action=drop

I have 35 same commands for different contents. My problem is that when this rules are enabled, upload in my LAN equals to 0. So I disabled all these rules except 3 of most visited web pages and after that my upload is back. But this is not solution for two reasons:

    1. After leaving even these three rules my internet speed has slowed down a little (both upload and download).
  1. I need all this rules to be enabled, so my users couldn’t waste their time for entertainment.

Thanks in advance, I hope you can help me.