Hi danial ashraf1
Welcome to the Microsoft Community
I understand your slow download speed for this game.
You think that the "Receive Window Auto-Tuning Level" is disabled, which causes your download speed. You can try the following steps to enable it:
Open the command prompt as an administrator:
Press Win + X, select "Command Prompt (Admin)" or "Windows PowerShell (Admin)".
Enter the following command and press Enter:
netsh interface tcp show global
Check the "Receive Window Auto-Tuning Level" to understand the current status.
Enable auto-tuning:
Enter the following command and press Enter:
netsh interface tcp set global autotuninglevel=normal
Verify the changes:
Run the first command again to make sure it is set to "normal".
Sometimes you need to restart your computer for the changes to take effect.
Try to change the group policy
If you are a Windows Professional user, you can press the Windows logo key + S, enter Edit Group Policy, open it and look at Computer Configuration, click Windows Configuration, right-click Qos Configuration, select Advanced Qos Configuration, and set TCP throughput to 3 (highest throughput). Set TCP throughput to "maximum" to get the highest transmission rate instead of limiting it to a fixed value.
Contact me if you need anything else.
Best wishes
Merek.Z - MSFT | Microsoft Community Support Specialist