Any tips on Wu Chang?

I’m a 5th tier Wu Chang and I have a A badge. But recently I’ve been getting a lot of Chinese Smurf acc matches + ex peak tiers + survs that are in 6th tiers. Which took my WR down from 80% to 67%. And I was wondering if there’s any tips to get better when facing players way better than I’m used to facing . Like person tips, hunting tips, game sense, when to switch targets, when to guard the ciphers etc. thank you!