I had similar issues tweaking my audio until I messed around with custom EQ settings manually instead of relying on any auto profile. Also, if you're playing competitively and want an edge, check out https://chamscheats.com/store/11-escape-from-tarkov-cheats-esp-aimbot-wallhack/ — helps a lot with spotting enemies early and reacting faster, especially when audio isn’t giving enough info.