Redis getKey P99 Latency very high(serverSide)

[Sambit11CH30019]

c := redisclient.NewClusterClient(&redis.ClusterOptions{
Addrs: strings.Split(rc.Address, ","),
Password: rc.Password,
PoolSize: rc.PoolSize, (200)
MinIdleConns: rc.MinIdleConns, (200)
ReadTimeout: rc.ReadTimeout * time.Millisecond, (100ms)
WriteTimeout: rc.WriteTimeout * time.Millisecond, (100ms)
PoolTimeout: rc.PoolTimeout * time.Millisecond, ( 5mins)
})

My P99 redis latency is around 80-100ms . Our key,value pair is redis is very simple eg:
key : CAT_123 , value :- {"abc" : 30,"bcd" :40}

the configurations params have been mentioned in the brackets .
Can anyone help me out regarding this ?what may have gone wrong