Comprehensive guide on pc optimizations aimed primarily towards lowering system latency (and yeah yeah subsequently also increasing/boosting your fps) : https://docs.google.com/document/d/1c2-lUJq74wuYK1WrA_bIvgb89dUN0sj8-hO3vqmrau4/edit?tab=t.0
Site to get free media (music, movie/show...