Reduce the response time of /valid
/valid takes about 8 seconds to respond

See https://github.com/huggingface/datasets-server/issues/250#issuecomment-1141922073
Reduce the response time of /valid: /valid takes about 8 seconds to respond

See https://github.com/huggingface/datasets-server/issues/250#issuecomment-1141922073