Performance issues with redis cluster compared to redis sentinel

[ardadem]

Hello everyone, i am having an issue with redis cluster (using go-redis on the client side) deployment, and researching what the problem can be. So in the same machine, everything is exactly the same, the only difference is that i have switched to redis cluster (3 masters and 3 slaves in this deployment) from the redis sentinel (1 master and 2 replicas). In my tests, it is 3 to 5 times slower with overall go-redis calls (i am using only GET and SET commands). Does anybody have an idea what should i check, what could be the issues, how can i track down the bottleneck? It would be really helpful to having a hint about what should i focus on or hearing similar experiences.