If you have no idea how to setup mods or "Fallout76Custom", follow these steps to get it ready and also add the speed up fix at the same time:

1. Navigate to Documents\My Games\Fallout 76

2. Select and Copy Fallout76.ini and Paste in same folder:


3. Rename Fallout76 - Copy to Fallout76Custom:

4. Open Fallout76Custom with Notepad and Delete ALL text and even spaces (The entire thing should be empty)

5. Copy these lines and paste them into your empty note:

[Interface]
fFadeToBlackFadeSeconds=0.2000
fMinSecondsForLoadFadeIn=0.3000

6. Save the note and you are done.
Enjoy your faster Fallout 76 Experience!

Your note should look like this:

Simply add these lines into your Fallout76Custom seperate from your [Archive] section:

[Interface]
fFadeToBlackFadeSeconds=0.2000
fMinSecondsForLoadFadeIn=0.3000

It should look like this:

Save the note and you are done.
Enjoy your faster Fallout 76 Experience!

I hope this guide was helpful!
Please let me know if you have any problems.

I have been using this fix with the game installed on my SSD so I cannot confirm if it is as effective on HDD's, but please let me know!

I am not the person to take credit for this fix; But I found it online an thought I would share here.