• Open Steam
  
• Go to the Library tab
  
• Right-click on CS: GO
  
• Select Properties and then General tab
  
• Click “Set Launch Options”

Now type the following in the steam launch options dialogue box as u see in the text down:
-tickrate 128 +fps_max 0 -novid -nojoy -high

Launch CS: GO, click on the Settings Menu on the left, select Video Settings, and then open the Video and Advanced Video tabs. I will show you how to set up each option graphics setting for maximum performance and FPS or you can choose other

• Video

• Aspect Ratio: use your native one.

It depends on your display. Nowadays, the majority of the monitors have a 16:9 aspect ratio. Generally, your aspect ratio will be automatically detected, so don’t worry about it.

• Resolution: Max

Using your actual system resolution for CS: GO. The higher the resolution, the better you will see and enjoy the game, but if you badly need a performance boost, decreasing the resolution will greatly improve your fps. No matter what happens, do not go below 720p.

• Display Mode: Fullscreen.

Full Screen is the best choice performance-wise. You also get less distraction when you are playing the game

• Laptop Power Savings: Disabled
  

This setting is useful if you are playing on a laptop that too on battery mode. The game FPS and graphics are limited so that it uses less power. The drawback is you will lose a lot of games due to lag and not being able to spot players..

• Advanced Video

We will review each option individually so that we get the best possible balance between graphics and performance in CS: GO settings.

• Global Shadow Quality: Low

.Shadow Quality is one of the settings with the biggest impact on fps. Set it to low. You do have some minor advantage with high shadows when it comes to spotting enemies, but that’s only when you have a very high graphics card. Go with low settings so that you can get the most FPS in CS: GO. Even with the low setting the shadows are visible so you can spot enemies with their shadows.

• Model/Texture Detail: High

.Texture Detail has a small negligible fps drop as it mostly depends on VRAM. If your graphics card has at least 3-4GB VRAM, I suggest putting it at High so that the game looks better and you will be able to spot enemies easily.

• Texture Streaming: Disabled

Texture streaming is a new option that loads textures only when you need them. It is a good option that can boost FPS but needs plenty of RAM and VRAM in order to work properly. On low-end systems, you will see the loading of textures which is bad if you are in a competitive match. Disable it if you have low memory issues. Enable it only after testing your system.

• Effect Detail: High

.When the effect detail and shader detail are great, you are able to see through Molotov smoke much more cleary then when you set it to low. For Awpers and mid-range gunners, this is a huge advantage. So I recommend keeping this setting at high.

• Shader Detail:

Very High
When you put this setting to very high, it can help you see through Molotov and incendiary smoke. The video below by clutch smoke can show you the difference quite easily.
Boost Player Contrast: Enabled
Added in the recent update. Must be enabled. It helps spot players in dark tunnels such as the one in dust 2. Better and much easier to get easy kills.

• Multicore Rendering: Enabled.

It adds a tiny bit of input lag, but the trade is worth it because Multicore Rendering will drastically boost your fps if you have a multicore CPU (enable it if you have at least a quad-core).

• Multisampling Anti-Aliasing Mode: None.

This setting has a huge impact on FPS and performance. I recommend disabling it to reduce lag and boost fps in CS: GO.

• FXAA Anti-Aliasing: Disabled.

Anti-Aliasing has a huge fps impact in CS: GO. FXAA doesn’t impact performance as much as MSAA does. But if you want the best performance and lag-free gameplay in CS: GO then you need to disable both options. Sorry, you have to live with slightly lower graphics.

• Texture Filtering Mode: Bilinear.

In CS:GO, when you set the texture filter to use the bilinear filter mode. It gives you an added advantage: “the objects in the game stand out more and can help you differentiate between player and object easily which helps to spot opponents.”

• Wait for Vertical Sync: Disabled.

It adds input lag, and you definitely do not want that. Use this only if you have RTX and a GSYNC monitor.

• Motion Blur

: Disabled.

• Uber Shaders:

Enabled for low end systems and Disabled for mid and High End Systems

• Image Sharpening – Sharpening Off, Scaling Disabled
  
• Ambient Occlusion – Performance
  
• Anistropic Filtering – Application-Controlled
  
• Antialiasing – FXAA – Off
  
• Anitaliasing – Gamma Correction – On
  
• Antialiasing Mode – Application-Controlled
  
• Antialiasing Transpparency – Off
  
• CUDA GPUs – All
  
• DSR Factors – Off
  
• Low Latency Mode – On
  
• Max Frame Rate – Off
  
• Multi-Frame Sampled AA – Off
  
• OpenGL Rendering GPU – Auto-select
  
• Power-Management Mode – Prefer Maximum Performance
  
• Preferred Refresh Rate – Highest available
  
• Shader Cache – On
  
• Texture Filtering -Anisotropic sample optimization – On
  
• Texture Filtering – Negative LOD Bias – Clamp
  
• Texture FIltering – Quality – Performance
  
• Texture Filtering – Trilinear Optimization – On
  
• Threaded optimization – Auto
  
• Triple buffering – Off
  
• Vertical Sync – Off