Tā qián bànchǎng biǎoxiàn yìbān, dàn hòujìn shízú.
He was mediocre in the first half but had plenty of staying power afterward.
Tips
usage
Two flavours: (1) the 'kick' that hits later - classic for strong baijiu, sleep medicine, or a heavy meal; (2) reserves for the long haul - used in sports, careers, and projects. Context tells you which.