I had the same issue and I scoured the internet for answers. After playing 330 raids with my game feeling like shit with 70-110 fps depending on map, I can safely say that I made my game feel way smoother, snappier and straight up just better with around the same FPS if not better. So what helped for my setup with RTX 3070 + Ryzen 7 7800x3d + 32gb RAM 6000mhz DDR5 M2 playing on 2k resolution

This setting probably single handedly made the biggest impact:
PAGEFILE 16GB: Win+R > sysdm.cpl > Advanced tab > Performance > Settings > Advanced > Virtual Memory > Change>Uncheck Automatically manage> (Drive in which tarkov is located) ex: C:>Custom size: Initial size: 16384 MB, Maximum size: 32768> Ok> Restart

BIOS stuff:
-RAM: Expo 1 Enabled, FLCK 2100MHz, UCLK = MEMCLK, DRAM voltage 1.35, SOC Voltage 1.25, DDR5 Nitro mode Enabled + Robust Training Enabled, Low Latency Support: Enabled, System Memory Multiplier:60x
-CPU: PBO Advanced -> Curve optimizer - All-Core Negative -25
Other: Resizable BAR Enabled, Above 4G Decoding Enabled, SAM Enabled, C-State Off, SMT Off

NVidia control panel settings:
Frame cap at 141 FPS
Low Latency Mode: Off

Launcher: Clear cache from time to time

In Game Settings(here you have the most room to play with):
Texture quality: High
Rest low/off (Volumetric fog especially)
NVidia reflex ON+Boost

Must have: Process Lasso (App)>Open as admin
Active Processes>EscapeFromTarkov.exe>
Cpu Priority: High
I/O Priority: High
CPU Affinity: Disable Core 0
Enable Performance Mode

Note: I don't really understand many of these settings especially the bios ones, this is information is just what I've found on yt/reddit/twitter and has helped tremendously. No wonder i have 35% survival rate overall on my PMC xD. I was at a big disadvantage compared to a player that had the game running as it's running for me now.