Boston FPS Fix - aka BostonDT PreVis-PreCombine

⭐ ⭐⭐⭐ (25,773 endorsements) 📥 1.6M downloads 📌 v.32 📅 8/21/2017
⚪ Last updated 2019

By BetaVirus · Performance

⬇ Download Mod Source: Nexus Mods 📅 Updated: 5/18/2019 📅 Created: 8/21/2017
⚠️ Install Order · 2 steps
1🛠️ F4SE — Fallout 4 Script Extender Download ↗
2🔧 UFO4P — Unofficial Fallout 4 Patch Download ↗

Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.

🔍 Analysis

  • 👍 1.6% endorsement rate — high engagement, a strong quality signal
  • 🏆 #3 of 26 Performance mods in this game by downloads

📋 About This Mod

Completed (DISCONTINUED)

I will review the mod for any bugs; but, otherwise it is considered complete. Any future projects will be a new mod.

NEXT GEN - Not Supported - known issues

NOTE: UFO patch was apparently updated, this has caused conflicts with my mod that will not be resolve till I have time to work on this mod again.* Please check the Articles and Video section of this mod page for some helpful info ====MOD DETAILS====

This mod was created using the Creation Kit and FO4Edit. It rebuilds the Vis and, when needed, Precombined data.  Vis data does the same thing as occlusion planes, and should not be needed; but, if Precombines and Vis data do not fix something, occlusion planes will be used in future areas. As always check the changelog if you are not sure.

In a mostly unmodded game this mod would be loaded at the top of your load order, after the main game and any UFO Patches.

Since most GREEN mods like Regrowth Overhaul, Rust Belt Flora, Conifers Redux, etc; OVERHAUL mods that add new places (Beantown Interiors, and a few others),break precombines by changing the existing Precombines/Vis data in their esp; They will conflict with this mod.

Additional Note: 

This mod is designed to make the game load better and Improve FPS when using mods. Performance​ increases​ have been 10-20 fps better than vanilla, with most players reporting avg of 50-60 FPS in most areas.

Compatibility should be high with most mods if they are loaded after my mod, but it is advised that you test this mod both above or below the mods you want to use.

Any mod that deletes or changes the Vis data will conflict. So, provide me with locations and the mods you know conflict, as well as what happens with different load orders.

Watch the videos in the Video section: It helps you understand what this mod does and why DETAILED feedback is VERY important, or if you feel adventurous, how to make your own patches/changes.

  • []Precombine & Previs Tutorial

    []Fallout 4 Optimization and Performance Systems Explained

    []Fallout 4's Modular Level Design

    This mod was made with the intention that people could learn from and even use my mod as a base for their own mods.

    Additional note: If a mod simply adds, BUT does NOT change existing objects in the cell/game, it will not conflict. Unfortunately this is rarely seen as most modders do not simply add to an area, most want to change the area to suit their vision and thus breaks the pre

🤖 AI-enhanced — based on mod data

Boston FPS Fix is a discontinued performance mod for Fallout 4 that boosts FPS in Boston and surrounding external areas, particularly beneficial for players using mods that disable previs or break precombines. With 25,773 endorsements and 1.6M downloads, it was a popular fix before being discontinued in 2019.

✨ Key Features

Improves FPS in Boston and surrounding external areas
Specifically helps players using mods that disable previs or break precombines in the Boston area
Discontinued as of May 2019

📊 Pros & Cons

✅ Pros

  • Huge community trust with 25,773 endorsements and 1.6M downloads
  • Targets the worst FPS drop zone in the game — Boston's external areas
  • Essential for modded setups that break precombines, which tank performance

⚠️ Cons

  • Discontinued since 2019 — may not work with the latest game patches or newer mods
  • Only affects external areas; interiors and other regions won't see improvements
  • No longer supported, so bugs or conflicts won't be fixed
🎯 Is This For You?
For Fallout 4 players who mod heavily and suffer FPS drops in Boston's streets. If you use mods that disable previs or break precombines, this is a must-have. Skip if you play vanilla or don't venture into Boston often.
📦 Install:Easy· Under 1 minute

💡 Beginner Tips

  • Since it's discontinued, check the mod's comments for any compatibility notes with your current game version.
  • If you use a mod manager, install it manually by dropping the files into your Data folder to avoid any manager conflicts.
  • Pair it with a precombine-friendly mod setup to get the best FPS gains in Boston.

📊 Mod Details

Game
Fallout 4 Mods
Author
BetaVirus
Version
.32
Downloads
1,580,773
Endorsements
25,773
Category
Performance
Created
8/21/2017
Updated
5/18/2019

🔧 How to Install Fallout 4 Mods

Download from Nexus.

📖 Full step-by-step install guide for Fallout 4 →

Visit the official mod page for specific installation instructions for this mod.

🎮 Need cheat codes or console commands? Check ur gaming wiki for Fallout 4 commands, item IDs, and more.

Keep browsing — more Fallout 4 mods await

📋 All Fallout 4 Mods 🏆 Top 25 📂 More Performance 👤 More by BetaVirus 🔎 Similar Mods 🌐 Best Performance (All Games) ⚠️ Fix Crashes & Errors 💾 Save Files 🔀 Check Compatibility ⚖️ Compare Mods 🆕 New Mods