diff --git a/cmd/utils/flags.go b/cmd/utils/flags.go
index 239b20f6b..c4315173a 100644
--- a/cmd/utils/flags.go
+++ b/cmd/utils/flags.go
@@ -384,7 +384,7 @@ var (
 	DBReadConcurrencyFlag = cli.IntFlag{
 		Name:  "db.read.concurrency",
 		Usage: "Does limit amount of parallel db reads. Default: equal to GOMAXPROCS (or number of CPU)",
-		Value: cmp.Max(10, runtime.GOMAXPROCS(-1)*2),
+		Value: cmp.Max(10, runtime.GOMAXPROCS(-1)*4),
 	}
 	RpcAccessListFlag = cli.StringFlag{
 		Name:  "rpc.accessList",
diff --git a/node/node.go b/node/node.go
index 611a7b25a..4d6237508 100644
--- a/node/node.go
+++ b/node/node.go
@@ -30,6 +30,7 @@ import (
 	"github.com/c2h5oh/datasize"
 	"github.com/ledgerwatch/erigon/node/nodecfg"
 	"github.com/ledgerwatch/erigon/params"
+	"golang.org/x/sync/semaphore"
 
 	"github.com/gofrs/flock"
 	"github.com/ledgerwatch/erigon-lib/kv"
@@ -319,7 +320,12 @@ func OpenDatabase(config *nodecfg.Config, logger log.Logger, label kv.Label) (kv
 	var openFunc func(exclusive bool) (kv.RwDB, error)
 	log.Info("Opening Database", "label", name, "path", dbPath)
 	openFunc = func(exclusive bool) (kv.RwDB, error) {
-		opts := mdbx.NewMDBX(logger).Path(dbPath).Label(label).DBVerbosity(config.DatabaseVerbosity)
+		roTxLimit := int64(16)
+		if config.Http.DBReadConcurrency > 0 {
+			roTxLimit = int64(config.Http.DBReadConcurrency)
+		}
+		roTxsLimiter := semaphore.NewWeighted(roTxLimit) // 1 less than max to allow unlocking to happen
+		opts := mdbx.NewMDBX(logger).Path(dbPath).Label(label).DBVerbosity(config.DatabaseVerbosity).RoTxsLimiter(roTxsLimiter)
 		if exclusive {
 			opts = opts.Exclusive()
 		}