GraphQL performing INSERT on cache_discovery table

Hi all,

We have a drupal site which acts as graphql api endpoint and during heavy loads (about 17 graphql requests/sec), our site seems to go down and the bottleneck appears to be graphql doing a lot of INSERTs to the cache_discovery table.

Does anyone know if this is a drupal core feature or can we disable this just for graphql? I am thinking this might not needed as we will have varnish cache and will be using persisted queries.

Thanks