diff --git a/client/common.go b/client/common.go
index 56de0a30..759606ee 100644
--- a/client/common.go
+++ b/client/common.go
@@ -71,14 +71,11 @@ func (x *prmCommonMeta) WithXHeaders(hs ...string) {
 
 func (x prmCommonMeta) writeToMetaHeader(h *v2session.RequestMetaHeader) {
 	if len(x.xHeaders) > 0 {
-		hs := make([]*v2session.XHeader, 0, len(x.xHeaders)/2)
+		hs := make([]v2session.XHeader, len(x.xHeaders)/2)
 
 		for i := 0; i < len(x.xHeaders); i += 2 {
-			var h v2session.XHeader
-			h.SetKey(x.xHeaders[i])
-			h.SetValue(x.xHeaders[i+1])
-
-			hs = append(hs, &h)
+			hs[i].SetKey(x.xHeaders[i])
+			hs[i].SetValue(x.xHeaders[i+1])
 		}
 
 		h.SetXHeaders(hs)
diff --git a/client/container.go b/client/container.go
index 2cea90bd..d86dd544 100644
--- a/client/container.go
+++ b/client/container.go
@@ -255,17 +255,17 @@ func (x *PrmContainerList) SetAccount(id owner.ID) {
 type ResContainerList struct {
 	statusRes
 
-	ids []*cid.ID
+	ids []cid.ID
 }
 
 // Containers returns list of identifiers of the account-owned containers.
 //
 // Client doesn't retain value so modification is safe.
-func (x ResContainerList) Containers() []*cid.ID {
+func (x ResContainerList) Containers() []cid.ID {
 	return x.ids
 }
 
-func (x *ResContainerList) setContainers(ids []*cid.ID) {
+func (x *ResContainerList) setContainers(ids []cid.ID) {
 	x.ids = ids
 }
 
@@ -319,10 +319,10 @@ func (c *Client) ContainerList(ctx context.Context, prm PrmContainerList) (*ResC
 	cc.result = func(r responseV2) {
 		resp := r.(*v2container.ListResponse)
 
-		ids := make([]*cid.ID, 0, len(resp.GetBody().GetContainerIDs()))
+		ids := make([]cid.ID, len(resp.GetBody().GetContainerIDs()))
 
-		for _, cidV2 := range resp.GetBody().GetContainerIDs() {
-			ids = append(ids, cid.NewFromV2(cidV2))
+		for i, cidV2 := range resp.GetBody().GetContainerIDs() {
+			ids[i] = *cid.NewFromV2(&cidV2)
 		}
 
 		res.setContainers(ids)
@@ -695,9 +695,9 @@ func (c *Client) ContainerAnnounceUsedSpace(ctx context.Context, prm PrmAnnounce
 	}
 
 	// convert list of SDK announcement structures into NeoFS-API v2 list
-	v2announce := make([]*v2container.UsedSpaceAnnouncement, 0, len(prm.announcements))
+	v2announce := make([]v2container.UsedSpaceAnnouncement, len(prm.announcements))
 	for i := range prm.announcements {
-		v2announce = append(v2announce, prm.announcements[i].ToV2())
+		v2announce[i] = *prm.announcements[i].ToV2()
 	}
 
 	// prepare body of the NeoFS-API v2 request and request itself
diff --git a/client/object_hash.go b/client/object_hash.go
index 44b187c1..a0d5b9c4 100644
--- a/client/object_hash.go
+++ b/client/object_hash.go
@@ -71,10 +71,9 @@ func (x *PrmObjectHash) SetRangeList(r ...uint64) {
 		panic("odd number of range parameters")
 	}
 
-	rs := make([]*v2object.Range, ln/2)
+	rs := make([]v2object.Range, ln/2)
 
 	for i := 0; i < ln/2; i++ {
-		rs[i] = new(v2object.Range)
 		rs[i].SetOffset(r[2*i])
 		rs[i].SetLength(r[2*i+1])
 	}
diff --git a/client/object_search.go b/client/object_search.go
index 7e93ccf9..38f63994 100644
--- a/client/object_search.go
+++ b/client/object_search.go
@@ -95,7 +95,7 @@ type ObjectListReader struct {
 	// initially bound to contextCall
 	bodyResp v2object.SearchResponseBody
 
-	tail []*v2refs.ObjectID
+	tail []v2refs.ObjectID
 }
 
 // UseKey specifies private key to sign the requests.
@@ -130,7 +130,7 @@ func (x *ObjectListReader) Read(buf []oid.ID) (int, bool) {
 	}
 
 	for i := 0; i < read; i++ {
-		buf[i] = *oid.NewIDFromV2(x.tail[i]) // need smth better
+		buf[i] = *oid.NewIDFromV2(&x.tail[i]) // need smth better
 	}
 
 	x.tail = x.tail[read:]
@@ -140,7 +140,7 @@ func (x *ObjectListReader) Read(buf []oid.ID) (int, bool) {
 	}
 
 	var ok bool
-	var ids []*v2refs.ObjectID
+	var ids []v2refs.ObjectID
 	var i, ln, rem int
 
 	for {
@@ -164,7 +164,7 @@ func (x *ObjectListReader) Read(buf []oid.ID) (int, bool) {
 		}
 
 		for i = 0; i < ln; i++ {
-			buf[read+i] = *oid.NewIDFromV2(ids[i]) // need smth better
+			buf[read+i] = *oid.NewIDFromV2(&ids[i]) // need smth better
 		}
 
 		read += ln
diff --git a/client/object_search_test.go b/client/object_search_test.go
index 3ce52c15..7809729c 100644
--- a/client/object_search_test.go
+++ b/client/object_search_test.go
@@ -175,9 +175,9 @@ func testListReaderResponse(t *testing.T) (*ObjectListReader, func(id []oid.ID)
 		resp := new(object.SearchResponse)
 		resp.SetBody(new(object.SearchResponseBody))
 
-		v2id := make([]*refs.ObjectID, len(id))
+		v2id := make([]refs.ObjectID, len(id))
 		for i := range id {
-			v2id[i] = id[i].ToV2()
+			v2id[i] = *id[i].ToV2()
 		}
 		resp.GetBody().SetIDList(v2id)
 		err := signatureV2.SignServiceMessage(&p.PrivateKey, resp)
diff --git a/client/reputation.go b/client/reputation.go
index a1b4b46d..c6806a59 100644
--- a/client/reputation.go
+++ b/client/reputation.go
@@ -65,11 +65,8 @@ func (c *Client) AnnounceLocalTrust(ctx context.Context, prm PrmAnnounceLocalTru
 	reqBody := new(v2reputation.AnnounceLocalTrustRequestBody)
 	reqBody.SetEpoch(prm.epoch)
 
-	trusts := make([]*reputation.Trust, 0, len(prm.trusts))
-
-	for i := range prm.trusts {
-		trusts = append(trusts, &prm.trusts[i])
-	}
+	trusts := make([]reputation.Trust, len(prm.trusts))
+	copy(trusts, prm.trusts)
 
 	reqBody.SetTrusts(reputation.TrustsToV2(trusts))
 
diff --git a/client/status/common.go b/client/status/common.go
index e5051c0a..05c5ae28 100644
--- a/client/status/common.go
+++ b/client/status/common.go
@@ -99,7 +99,7 @@ func (x *WrongMagicNumber) WriteCorrectMagic(magic uint64) {
 	d.SetValue(buf)
 
 	// attach the detail
-	x.v2.AppendDetails(&d)
+	x.v2.AppendDetails(d)
 }
 
 // CorrectMagic returns network magic returned by the server.