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How to Fix Performance Issues on Portal Prelude:RTX
Av RandomBirb
A Guide about how to fix performence issues on Portal Prelude:RTX couse Valve didn't read the Portal:RTX reviews carefully
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RandomBirb
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Kategori: Modding or Configuration
Languages: English
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1 aug, 2023 @ 17:06
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Guideindex
Överblick
Hello There! 
Our Lord and Savior: General Fix 
Our Lord and Savior: Making Final Chapter Playable 
Closing Thoughts 
Kommentarer
Hello There!
Hello! When I saw Prelude got RTX I thought Valve would listen and check the game properly this time but no once again you can have the perfect PC but Prelude decides to work on 20 FPS (they ♥♥♥♥♥♥♥ took 10 FPS for our reviews) so now here we are using Nvidia's menu to fix this mess
Our Lord and Savior: General Fix
Just do these 3 steps and save yourself from Portal Prelude:RTX on 20 FPS

  • Press ALT+X in game
  • DLSS 2.0 - Change to Custom
  • Super Resolution Mode - Change to Ultra Performence
Our Lord and Savior: Making Final Chapter Playable
Yeah this one is worse on Original game not just becouse it's on 20 FPS but also becouse mf can crash on the final chapter or If you are lucky enough enter a lagging spree that turns the game into a Microsoft Powerpoint Slide, To Fix This You have to:

  • Press ALT+X
  • Go to Enchanced Settings
  • Disable Enchanced Meshes

For some weird reason Echanced Meshes compeletly destroy this chapter so disabling them seems to be the only solution (so much for a remaster)
Closing Thoughts
Well this is it. Just follow the steps on the sections above and you are good to go

It's honestly THIS was allowed TWICE but sadly it did and we can't get a proper remaster to one of the puzzle games ever made while also not getting a proper remaster to one of its best mods so I hope this guide helped you and as always

Thanks for Reading
22 kommentarer
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MrSummerall05 27 jul @ 9:15 
can you make on on how to fix the game when it wont even load?
Roymanan 18 apr @ 19:02 
i can go into the game but when the turrent said hello it fadedout then 10 secslader it closed out
Pancho Villa 28 mar @ 14:55 
my game was fine at first then now the d3d device stopped supporting rtx for prelude
emmitisbest310 2 jan @ 21:57 
i cant play it tho:steamsad:
Isaac 12 nov, 2024 @ 15:45 
The game opened and ran fine.
I accidentally glitched myself into a wall.
I noclipped out of the wall...then couldn't shoot blue portals anymore.
I decided to close and open the game again.
The game won't load anymore.
CheeseSlice 9 sep, 2024 @ 20:58 
I can't even open the game.
RandomBirb  [skapare] 29 apr, 2024 @ 17:34 
@DM4CG4M3R idk If Valve themselves did the porting which I highly doubt but whoever messed something up badly in these games
From what I see majority of problems are coused by shadows ESPECIALLY in Prelude I wouldn't be this pissed about it during the writing of this guide but the post we got was a tutorial on how to optimize our game for our PC which is not what we need at all
DM4CG4M3R 29 apr, 2024 @ 15:32 
It's not really the developers fault, Some computers just don't run very well on a game with ray tracing. Portal games specifically seem to have trouble for some reason... I think the games usually have a crazy amount of stuff running that can cause crash problems. I was able to run it on max settings and I never had a lag spike. (To be fair I do have a NVIDIA GeForce RTX 4070 Ti, I've found that your CPU is also fairly important to run this...) The only true flaw here is mis-labeling the minimum specs.:steamthumbsup::p2aperture:
Wheatley 18 apr, 2024 @ 20:23 
i can't even open the game
Calvin_Dean 24 dec, 2023 @ 12:01 
rip pc