192 GB RAM is enough to run a new SoTA AI LLM model, in its class size, DeepSeek V4 Flash 0731:
artificialanalysis.ai/?models=qwen3-5-122b-a10b-non-reasoning%2Cqwen3-5-122b-a10b%2Cmimo-v2-5-0424%2Cnemotron-3-5-lightning%2Cqwen3-6-27b-non-reasoning%2Cminimax-m2-7%2Cmuse-glimmer%2Cnvidia-nemotron-3-super-120b-a12b%2Cqwen3-6-35b-a3b-non-reasoning%2Cstep-3-7-flash%2Cinkling-small%2Cqwen3-6-35b-a3b%2Cqwen3-6-27b%2Cmotif-0714%2Chy3%2Cg9v3-39a5b%2Cgemma-4-31b%2Cgemma-4-31b-non-reasoning%2Cmistral-medium-3-5%2Cling-3-0-flash%2Cgpt-oss-120b%2Cdeepseek-v4-flash%2Cmotif-3%2Csolar-open2-250b&intelligence=artificial-analysis-intelligence-index

A good place to start is lowering shadows, reflections, and effects before dropping the overall resolution too much. I'd also check whether the system is running unnecessary background apps and make sure the graphics drivers are up to date. Keeping some free space on the drive can help with general system performance as well, although it won't magically increase FPS. I've seen   mentioned while browsing related gaming content, but for actual performance gains I'd focus first on the game settings and thermals. On really low-end hardware, even small changes can sometimes make a noticeable difference.