Boston FPS Fix - PRP Edition
🟠 Updated over a year ago⚠️ Install Order · 4 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview

🔍 Analysis
- 👍 1.0% endorsement rate
- 🏆 #14 of 26 Performance mods in this game by downloads
📋 About This Mod
Update 06/11/25: Got around to checking against UFO4P 2. 1. 8, no changes need made. Header updates did not originally require the CC, so it's safe to use with OG or NG.
Update 12/14/24: Maintenance update: The PRP Lite build has been RETIRED in favor of the original, and I've returned the original replacer to it's original place in the files position, updating to account for UFO4P 2. 1. 7. Existing users of the PRP Lite build with the BFPSFix plugin name should migrate to PRP Lite Merged on a new save game.
Update 08/14/24: Maintenance update: The PRP Lite build has been version updated to 0. 37 (unchanged since 0. 35), the old BostonFPSFix replacer has been updated to 0. 36 (to resolve conflicts with the current unofficial patch release)
Update 09/18/23: Version 0. 35 will be up a bit later tonight.
The changes work as follows:
0. 35 will be the same as a PRP Lite Merged update to be uploaded hopefully around the same time. Aside from the unique precombine meshes (I have no control over this), the contents will be identical internally, and the plugin naming will be the same here for previous users. I'm declaring the old school BostonFPSFix finally depreciated, and as before, the 0. 34 patch on top will still be in old files when uploaded.
Update 12/28/22: This is a PSA to the XB1 userbase that is looking for more information on the console version of Boston FPS Fix. Due to technical issues with the game on XB1 (previsibine header mismatch), I cannot port the original and this replacer over to it successfully without redoing it from scratch. The mesh differences of the base game are too great. Users of the original series of mods on XB1 should consider abandoning them. The vanilla data plugin pushes PC previsibine headers to your XB1 game which breaks Far Harbor.
Update 9/18/22: Going forward, updates for the replacer will only happen when UF4OP updates. Much like the parent mod, this mod is otherwise discontinued. PRP Lite should be your replacement going forward if you can afford to start a new playthrough, though it does have flicker issues at this time due to mesh mismatches as described above.
This will not magically make BostonFPSFix compatible with PRP or PRPFX. The three mods do the same thing and thus are incompatible, and PRPFX is the better usecase over BFPSFix, but this patch will stay up and be supported as a courtesy to the userbase.
A while back, I made a post on Boston FPS Fix's mod page about backporting some PRP fixes over to it. These were based on the AIO versions shipped in the original mod, and you do need the supporting files to use these.
Changes included are as follows:
- Forwarded PCMB for any cells rebuilt in the original so that the existing precombine meshes are actually used, and also forwarded appropriate headers that may have gotten clobbered previously
Boston FPS Fix - PRP Edition is a plugin replacer for BostonFPSFix that integrates PRP backports and bugfixes. It targets Fallout 4 players seeking improved performance in Boston while maintaining compatibility with PRP. With 2,805 endorsements and 285,049 downloads, it's a popular choice for performance-focused modding.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Huge community trust with 2,805 endorsements and 285k downloads
- Combines two popular mods (BostonFPSFix and PRP) into one package
- Actively maintained, last updated December 2024
⚠️ Cons
- Requires PRP (Previsibines Repair Pack) to be installed, adding a dependency
- Not a standalone fix—you need the original BostonFPSFix as a base
- May conflict with other mods that alter Boston's precombines or previs
For Fallout 4 players who already use PRP and want to boost FPS in downtown Boston without breaking precombines. If you're not using PRP, skip this and grab the standard BostonFPSFix instead.
💡 Beginner Tips
- Make sure you have PRP and BostonFPSFix installed first, then replace the BostonFPSFix plugin with this one.
- Load this mod after PRP in your load order to ensure the backports apply correctly.
- If you see broken precombines, double-check that you're using the correct PRP version for your game (e.g., next-gen update).
📊 Mod Details
- Game
- Fallout 4 Mods
- Author
- Valyn81 and BenRierimanu
- Version
- 0.38
- Downloads
- 285,049
- Endorsements
- 2,805
- Category
- Performance
- Created
- 3/22/2022
- Updated
- 12/15/2024
🔧 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