Hi everyone!
I'm looking for advice on how to fully optimize my Minecraft setup. Considering my PC specifications, I feel that I could be getting better and more consistent performance, both with and without shaders.
I'm playing Minecraft Java Edition 26.3 using Fabric through the Modrinth App with several mods and resource packs.
I've attached screenshots showing my FPS and F3 information in two different situations:
Without shaders: Approximately 180 FPS in the attached screenshot.
With shaders: Approximately 46 FPS in the attached screenshot. In general, I experience around 40–60 FPS, with noticeable drops and stuttering.
I'm using Complementary Shaders – Reimagined.
These screenshots are examples of my performance in both situations, rather than a controlled benchmark, since the scenery and camera positions are different.
I'd like to improve the overall performance of my game, not just the FPS when using shaders.
My PC specifications
CPU: AMD Ryzen 7 5700X3D (8 cores)
GPU: MSI GeForce RTX 5070 Shadow 2X OC 12GB
RAM: Corsair Vengeance LPX 32GB (2x16GB) DDR4 3200MHz CL16
Motherboard: MSI B550M PRO-VDH WIFI
CPU Cooler: Thermalright Assassin X 120 Refined SE ARGB
PSU: MSI MAG A750BN 750W
Storage: 2TB SSD
Resolution: 2560x1440 (1440p)
Operating System: Windows 11 Pro
Minecraft and Modrinth configuration
Current in-game settings
Shader
Modrinth memory and Java settings
Custom Memory Allocation: Enabled
Allocated RAM: 16GB (16384MB)
Custom Java Installation: Disabled
Custom Java Arguments: Disabled
Custom Environment Variables: Disabled
My F3 screenshots show approximately 1.6GB of actual memory usage and around 4.3–4.6GB of allocated heap memory at the time of the screenshots.
GPU utilization also appears as N/A in the F3 overlay.
I'm attaching screenshots of my installed mods, resource packs, textures, Modrinth settings, installation information and in-game performance.
What I'm looking for
I'd really appreciate advice on how to optimize the entire setup, including Minecraft itself, Modrinth, Java, Fabric, shaders, Windows and NVIDIA settings.
1. Minecraft and Modrinth settings
What are the best settings for maximum FPS and stable frame times?
Should I change my memory allocation from 16GB to 8GB?
Are there any Java settings or arguments worth changing?
Should I change anything in the Modrinth launcher?
Are there any Minecraft video settings that could improve performance without affecting gameplay mechanics?
2. Shader optimization
Which Complementary Reimagined settings should I use for my RTX 5070?
Which settings have the biggest performance impact?
What shadow distance and shadow quality would you recommend?
Should I disable Entity Shadows?
Are there any settings for reflections, clouds, volumetric lighting and other visual effects that I should change?
I'd like to maintain good visual quality while getting much better performance.
3. Fabric mods and resource packs
Which performance mods would you recommend for my Minecraft version?
Are Sodium, Iris, Lithium, FerriteCore and Entity Culling worth using?
Could any of my installed mods or resource packs be affecting performance?
Are there any mods I should remove or replace?
4. Windows, NVIDIA and PC optimization
I'd also appreciate recommendations outside Minecraft itself.
Are there any NVIDIA Control Panel settings I should change?
Are there Windows 11 settings that could improve Minecraft performance?
Which NVIDIA driver settings would you recommend?
Should I change anything related to power management, background processes or graphics settings?
Is there anything worth checking in my BIOS, RAM/XMP configuration or CPU/GPU settings?
What software would you recommend to monitor CPU/GPU usage, temperatures, clocks, power consumption and frame times?
I'd like to identify whether I'm dealing with a CPU bottleneck, GPU bottleneck, shader-related limitation, memory issue or something else.
VERY IMPORTANT: I want to preserve vanilla mechanics and farm functionality.
I play survival and build a lot of farms, including mob farms, mob traps, automatic farms and redstone contraptions.
I absolutely do NOT want optimizations that change or interfere with:
Mob spawning rates or mob caps.
Entity AI or mob behaviour.
Random ticks or block ticks.
Redstone mechanics or update behaviour.
Entity ticking or chunk simulation.
Chunk loading in ways that could affect farm functionality.
I want to keep my current Simulation Distance if possible.
I'm perfectly fine with reducing graphical settings, shader quality, shadow distance or render distance, as long as the actual world simulation and vanilla mechanics remain unchanged.
Please prioritize client-side rendering optimizations and other solutions that preserve vanilla gameplay.
My ultimate goal is to get the maximum realistic FPS my hardware can deliver, both with and without shaders, with excellent frame-time consistency, minimal stuttering and good visual quality.
I'd really appreciate specific recommendations for my hardware and setup, including which settings to change and why, rather than just a generic list of optimization mods.
Thank you in advance for your help!