The FoV in Vermintide 2 works a bit diferently than in other games you might be familiar with. This is because the slider you control ingame is vertical field of view, not horizontal field of view like most games and thus does not adjust like you might expect. To account for this, use the website below to caclulate what your FoV should be set to in order to get the desired effect.

(Steam is being stupid, insert 'munch e r' without spaces into where the hearts are below)
https://themetalmuncher.github.io/fov-calc/

Conversions for common FoV's:

• 60° Horizontal = 36° Vertical
  
• 90° Horizontal = 59° Vertical
  
• 120° Horizontal = 89° Vertical

Reccomended: High/High

• Character texture quality (GPU, Very Low impact): Controls the quality of textures on characters
  
• Environment texture quality (GPU, Very Low impact): Controls the quality of textures on the environment
  
• You need at least 3GB of VRAM to use high quality textures, any less and you should use low quality textures

Reccomended: Medium/High/100%/100

• Particle quality (GPU, Very high impact): Controls the amount of particles on the screen, must be set to medium to see blood splatters during combat from hitting enemies
  
• Transparency resolution (GPU, Medium impact): Significantly changes the appearance of particles, low setting will make sparks look like large white pixels, highly recommended to set this on high
  
• Scatter density (GPU & CPU, Very low impact): Controls the amount of grass/rubble on the level
  
• Blood decal amount (GPU, Very low impact): controls the amount of blood splatters on walls/floor/character models, extreme preset has it at 100 but you might prefer 0 for better visual clarity

Reccomended: Off/Off/1/Medium/Low/Off

• Local light shadow quality (CPU, High impact): Controls the quality of dynamic shadows cast by local lights such as lamps and torches, sometimes these shadows have a very short draw distance and you can see them pop-in as you turn around or move forward
  
• Sun shadows (CPU, Very high impact): Controls the quality of dynamic shadows cast by the sun and moon, low/medium have low quality shadows at a short distance, High/Extreme have high quality shadows at a medium distance, such as with local light shadows these have a low draw distance which can be jarring to look at but usually it's hard to notice, sun shadows do impact some indoor areas as well
  
• Max shadow casting lights (CPU, High impact): Controls the amount of shadows cast by lights, or something, after testing it turns out that the higher this setting is the more draw distance shadows will have, if you use local light shadows then consider increasing the value of this setting considerably
  
• Volumetric fog quality (GPU, High impact): Adds depth to the image with volumetric fog, the difference between each setting depends on the map, in some cases it will make the fog extend further away into the distance, sometimes the difference between them is nonexistent, and in some cases it will add more fog to the scene and make it harder to see, for example in Convocation of Decay where the door puzzle is, Medium seems to be the most efficient as Low barely adds an effect and the higher settings don't do much but always impact your performance more
  
• Ambient light quality (GPU & CPU, Medium impact): Controls static lighting, very apparent indoors, for best results use Low if Sun Shadows are off, and high if Sun Shadows are anything but off, otherwise you will end up with awkward scenes where the lighting doesn't match, if indoor areas ever look too bright it's because this setting isn't on High
  
• High quality fur: Anything to do with high quality hair in games is a major performance killer so turn this off

Reccomended: TAA/On/Medium/On/Off/On/Off/On/Off/Off/On

• Anti-aliasing (GPU, None to High impact): Off looks very sharp but then edges will be jaggy, FXAA does a poor job of blurring them out for basically no performance impact, TAA does a decent job of blurring them out along with smearing the whole screen in vaseline for a rather large performance impact
  
• Sharpness filter: Applies a filter that makes the entire image sharper, highly recommended to have this on if you use FXAA or TAA
  
• SSAO (GPU, Low to Very High impact): Screen space ambient occlusion, either have this on Medium for a subtle effect and minimal impact, Extreme for the complete opposite, or Off if you don't care for it, for some reason high looks really bad
  
• Bloom: Gives light sources a subtle shine
  
• Skin shading: Adds a minimal amount of definition to character faces, essentially unnoticeable unless looking for it
  
• Depth of field (GPU, Medium impact): Makes objects and scenery in the distance look out of focus
  
• Screen space reflections (GPU, High impact): Enables reflections on reflective surfaces such as water puddles, reflections are always big performance killers, hardly noticeable due to the lack of reflective surfaces, but despite that the performance impact is significant
  
• Light shafts: Rays of light that peak out between trees and other such obstructions
  
• Lens flare: Like it or hate it, lens flare is really a matter of preference and doesn't impact performance in almost any way
  
• Color and Lens distortions: Adds a very small but strange "fish eye" effect that makes the image distort around the corners, also adds subtle chromatic aberration which can cause motion sickness for some people but it's not as bad as it usually is in games
  
• Motion blur (GPU, Low impact): Makes things look blurry in motion, very cinematic and arguably makes lower fps look smoother

Reccomended: Off/0

• Physics debris (CPU, Medium impact): Controls various map effects where debris fall dynamically
  
• Animation LOD Distance (CPU, Low impact): Determines how far away character animations will still play normally

Note:
If you want much nicer visuals without sacrificing too much fps, consider bumping up Sun shadows and Ambient light quality to High.

You can further increase your upload bandwith past the in-game limit of 2Mbps for better game hosting by changing the value in the config file. This can make games feel a bit more responsive and smoother, especially if you have a high upload connection.

Location: C:\Users\USERNAME\AppData\Roaming\Fatshark\Vermintide 2
File: user_settings.config
Value: max_upload_speed

Use Notepad++ or something thats not the default notepad to open it. Don't set it to your max upload speed, that may cause problems.
Personally I like to use 4Mbps, but I wouldn't set it past 5Mbps since I have 6Mbps upload speed.

Setting the amount of worker threads to the maximum amount on the launcher can also improve performance.

I hope this guide was helpful to everyone concerned with getting the most out of their games, and credit to anons on /vtg/ for some of the info.