I wouldn't be surprised if that's the performance issue. It seems to be used as in memory cache for all (?) collections and uses a mutex to access them, even on reads.
Most (properly set up) databases are pretty good keeping things cached and with a local socket the latency is low. With this setup I'd be very careful to do my own general purpose caching. The solution here is likely very sub optimal.
I wouldn't be surprised if that's the performance issue. It seems to be used as in memory cache for all (?) collections and uses a mutex to access them, even on reads. Most (properly set up) databases are pretty good keeping things cached and with a local socket the latency is low. With this setup I'd be very careful to do my own general purpose caching. The solution here is likely very sub optimal.