diff --git a/.github/workflows/test-integration.yml b/.github/workflows/test-integration.yml
index c7462a8d262..3996897d84a 100644
--- a/.github/workflows/test-integration.yml
+++ b/.github/workflows/test-integration.yml
@@ -37,7 +37,7 @@ jobs:
         run: sudo apt update && sudo apt install build-essential
 
       - name: test-integration
-        run: make test-integration
+        run: GOGC=80 make test-integration
 
   tests-windows:
     strategy:
diff --git a/Makefile b/Makefile
index aab922d9e06..55e035f8362 100644
--- a/Makefile
+++ b/Makefile
@@ -65,7 +65,7 @@ GO_FLAGS += -ldflags "-X ${PACKAGE}/params.GitCommit=${GIT_COMMIT} -X ${PACKAGE}
 
 GOBUILD = ${CPU_ARCH} CGO_CFLAGS="$(CGO_CFLAGS)" CGO_LDFLAGS="$(CGO_LDFLAGS)" GOPRIVATE="$(GOPRIVATE)" $(GO) build $(GO_FLAGS)
 GO_DBG_BUILD = ${CPU_ARCH} CGO_CFLAGS="$(CGO_CFLAGS) -DMDBX_DEBUG=1" CGO_LDFLAGS="$(CGO_LDFLAGS)" GOPRIVATE="$(GOPRIVATE)" $(GO) build -tags $(BUILD_TAGS),debug -gcflags=all="-N -l"  # see delve docs
-GOTEST = ${CPU_ARCH} CGO_CFLAGS="$(CGO_CFLAGS)" CGO_LDFLAGS="$(CGO_LDFLAGS)" GOPRIVATE="$(GOPRIVATE)" GODEBUG=cgocheck=0 GOTRACEBACK=1 $(GO) test $(GO_FLAGS) ./... -p 2
+GOTEST = ${CPU_ARCH} CGO_CFLAGS="$(CGO_CFLAGS)" CGO_LDFLAGS="$(CGO_LDFLAGS)" GOPRIVATE="$(GOPRIVATE)" GODEBUG=cgocheck=0 GOTRACEBACK=1 $(GO) test $(GO_FLAGS) ./...
 
 default: all
 
diff --git a/erigon-lib/kv/mdbx/kv_mdbx.go b/erigon-lib/kv/mdbx/kv_mdbx.go
index 968a24e2fa7..3d44a72c97d 100644
--- a/erigon-lib/kv/mdbx/kv_mdbx.go
+++ b/erigon-lib/kv/mdbx/kv_mdbx.go
@@ -140,7 +140,7 @@ func (opts MdbxOpts) InMem(tmpDir string) MdbxOpts {
 	opts.flags = mdbx.UtterlyNoSync | mdbx.NoMetaSync | mdbx.NoMemInit
 	opts.growthStep = 2 * datasize.MB
 	opts.mapSize = 512 * datasize.MB
-	opts.dirtySpace = uint64(128 * datasize.MB)
+	opts.dirtySpace = uint64(64 * datasize.MB)
 	opts.shrinkThreshold = 0 // disable
 	opts.label = kv.InMem
 	return opts
diff --git a/erigon-lib/kv/memdb/memory_database.go b/erigon-lib/kv/memdb/memory_database.go
index d33c870748b..f8f3c327a73 100644
--- a/erigon-lib/kv/memdb/memory_database.go
+++ b/erigon-lib/kv/memdb/memory_database.go
@@ -51,7 +51,6 @@ func NewSentryDB(tmpDir string) kv.RwDB {
 func NewTestDB(tb testing.TB) kv.RwDB {
 	tb.Helper()
 	tmpDir := tb.TempDir()
-	tb.Helper()
 	db := New(tmpDir)
 	tb.Cleanup(db.Close)
 	return db
diff --git a/tests/block_test.go b/tests/block_test.go
index 269dde4ab78..3003fd707a0 100644
--- a/tests/block_test.go
+++ b/tests/block_test.go
@@ -53,6 +53,7 @@ func TestBlockchain(t *testing.T) {
 	checkStateRoot := true
 
 	bt.walk(t, blockTestDir, func(t *testing.T, name string, test *BlockTest) {
+		t.Parallel()
 		// import pre accounts & construct test genesis block & state root
 		if err := bt.checkFailure(t, test.Run(t, checkStateRoot)); err != nil {
 			t.Error(err)
diff --git a/tests/block_test_util.go b/tests/block_test_util.go
index dddba742728..83e7f174e62 100644
--- a/tests/block_test_util.go
+++ b/tests/block_test_util.go
@@ -124,6 +124,7 @@ func (bt *BlockTest) Run(t *testing.T, checkStateRoot bool) error {
 	if !ok {
 		return UnsupportedForkError{bt.json.Network}
 	}
+
 	engine := ethconsensusconfig.CreateConsensusEngineBareBones(context.Background(), config, log.New())
 	m := mock.MockWithGenesisEngine(t, bt.genesis(config), engine, false, checkStateRoot)
 	defer m.Close()
diff --git a/tests/exec_spec_test.go b/tests/exec_spec_test.go
index d8ea375f79a..e93e660f97b 100644
--- a/tests/exec_spec_test.go
+++ b/tests/exec_spec_test.go
@@ -35,6 +35,7 @@ func TestExecutionSpec(t *testing.T) {
 	checkStateRoot := true
 
 	bt.walk(t, dir, func(t *testing.T, name string, test *BlockTest) {
+		t.Parallel()
 		// import pre accounts & construct test genesis block & state root
 		if err := bt.checkFailure(t, test.Run(t, checkStateRoot)); err != nil {
 			t.Error(err)
diff --git a/tests/testdata b/tests/testdata
index 92010754908..e46e1db503e 160000
--- a/tests/testdata
+++ b/tests/testdata
@@ -1 +1 @@
-Subproject commit 9201075490807f58811078e9bb5ec895b4ac01a5
+Subproject commit e46e1db503ee2711ad02e1f5b3ea45d43e9cd8cb
diff --git a/turbo/stages/mock/mock_sentry.go b/turbo/stages/mock/mock_sentry.go
index 10408fe7904..95cdfa94e2f 100644
--- a/turbo/stages/mock/mock_sentry.go
+++ b/turbo/stages/mock/mock_sentry.go
@@ -612,6 +612,7 @@ func MockWithEverything(tb testing.TB, gspec *types.Genesis, key *ecdsa.PrivateK
 	if err = mock.InsertChain(c); err != nil {
 		tb.Fatal(err)
 	}
+
 	return mock
 }