diff --git a/e2e/chain.go b/e2e/chain.go
index 7491b4d7..1b6efed3 100644
--- a/e2e/chain.go
+++ b/e2e/chain.go
@@ -3,6 +3,7 @@ package e2e
 import (
 	"fmt"
 	"os"
+	"sync"
 
 	tmrand "github.com/cometbft/cometbft/libs/rand"
 
@@ -53,28 +54,55 @@ func (c *chain) configDir() string {
 }
 
 func (c *chain) createAndInitValidators(count int) error {
+	// Preallocate with a capacity to avoid rellocation
+	c.validators = make([]*validator, 0, count)
+
+	var wg sync.WaitGroup
+	errChan := make(chan error, count)
+
 	for i := 0; i < count; i++ {
-		node := c.createValidator(i)
+		wg.Add(1)
+		go func(index int) {
+			defer wg.Done()
+
+			node := c.createValidator(index)
+
+			// generate genesis files
+			if err := node.init(); err != nil {
+				errChan <- err
+				return
+			}
+
+			// create keys
+			if err := c.createKeys(node); err != nil {
+				errChan <- err
+				return
+			}
+
+			c.validators = append(c.validators, node)
+		}(i)
+	}
 
-		// generate genesis files
-		if err := node.init(); err != nil {
+	wg.Wait()
+	close(errChan)
+
+	// Return the first error that occurred, if any
+	for err := range errChan {
+		if err != nil {
 			return err
 		}
+	}
 
-		c.validators = append(c.validators, node)
+	return nil
+}
 
-		// create keys
-		if err := node.createKey("val"); err != nil {
-			return err
-		}
-		if err := node.createNodeKey(); err != nil {
-			return err
-		}
-		if err := node.createConsensusKey(); err != nil {
+func (c *chain) createKeys(node *validator) error {
+	keys := []string{"val", "node", "consensus"}
+	for _, key := range keys {
+		if err := node.createKey(key); err != nil {
 			return err
 		}
 	}
-
 	return nil
 }
 
diff --git a/e2e/query.go b/e2e/query.go
index 3a731cd0..e6b7e9b3 100644
--- a/e2e/query.go
+++ b/e2e/query.go
@@ -3,6 +3,7 @@ package e2e
 import (
 	"encoding/json"
 	"fmt"
+	"io"
 	"net/http"
 
 	govtypes "github.com/cosmos/cosmos-sdk/x/gov/types/v1"
@@ -10,23 +11,32 @@ import (
 	wasmstoragetypes "github.com/sedaprotocol/seda-chain/x/wasm-storage/types"
 )
 
-func queryTx(endpoint, txHash string) error {
-	resp, err := http.Get(fmt.Sprintf("%s/cosmos/tx/v1beta1/txs/%s", endpoint, txHash))
+func query(endpoint, path string, v interface{}) error {
+	resp, err := http.Get(fmt.Sprintf("%s/%s", endpoint, path))
 	if err != nil {
 		return fmt.Errorf("failed to execute HTTP request: %w", err)
 	}
-
 	defer resp.Body.Close()
 
 	if resp.StatusCode != 200 {
-		return fmt.Errorf("tx query returned non-200 status: %d", resp.StatusCode)
+		body, _ := io.ReadAll(resp.Body)
+		return fmt.Errorf("query returned non-200 status: %d, body: %s", resp.StatusCode, body)
 	}
 
-	var result map[string]interface{}
-	if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
+	if err := json.NewDecoder(resp.Body).Decode(v); err != nil {
 		return fmt.Errorf("failed to read response body: %w", err)
 	}
 
+	return nil
+}
+
+func queryTx(endpoint, txHash string) error {
+	var result map[string]interface{}
+	err := query(endpoint, fmt.Sprintf("cosmos/tx/v1beta1/txs/%s", txHash), &result)
+	if err != nil {
+		return err
+	}
+
 	txResp := result["tx_response"].(map[string]interface{})
 	if v := txResp["code"]; v.(float64) != 0 {
 		return fmt.Errorf("tx %s failed with status code %v", txHash, v)
@@ -37,85 +47,36 @@ func queryTx(endpoint, txHash string) error {
 
 func queryGovProposal(endpoint string, proposalID int) (govtypes.QueryProposalResponse, error) {
 	var govProposalResp govtypes.QueryProposalResponse
-
-	path := fmt.Sprintf("%s/cosmos/gov/v1/proposals/%d", endpoint, proposalID)
-
-	body, err := httpGet(path)
-	if err != nil {
-		return govProposalResp, fmt.Errorf("failed to execute HTTP request: %w", err)
-	}
-	if err := cdc.UnmarshalJSON(body, &govProposalResp); err != nil {
-		return govProposalResp, err
-	}
-	return govProposalResp, nil
+	err := query(endpoint, fmt.Sprintf("cosmos/gov/v1/proposals/%d", proposalID), &govProposalResp)
+	return govProposalResp, err
 }
 
 func queryDataRequestWasm(endpoint string, drHash string) (wasmstoragetypes.QueryDataRequestWasmResponse, error) {
 	var res wasmstoragetypes.QueryDataRequestWasmResponse
-
-	body, err := httpGet(fmt.Sprintf("%s/seda-chain/wasm-storage/data_request_wasm/%s", endpoint, drHash))
-	if err != nil {
-		return res, err
-	}
-
-	if err = cdc.UnmarshalJSON(body, &res); err != nil {
-		return res, err
-	}
-	return res, nil
+	err := query(endpoint, fmt.Sprintf("seda-chain/wasm-storage/data_request_wasm/%s", drHash), &res)
+	return res, err
 }
 
 func queryOverlayWasm(endpoint string, hash string) (wasmstoragetypes.QueryOverlayWasmResponse, error) {
 	var res wasmstoragetypes.QueryOverlayWasmResponse
-
-	body, err := httpGet(fmt.Sprintf("%s/seda-chain/wasm-storage/overlay_wasm/%s", endpoint, hash))
-	if err != nil {
-		return res, err
-	}
-
-	if err = cdc.UnmarshalJSON(body, &res); err != nil {
-		return res, err
-	}
-	return res, nil
+	err := query(endpoint, fmt.Sprintf("seda-chain/wasm-storage/overlay_wasm/%s", hash), &res)
+	return res, err
 }
 
 func queryDataRequestWasms(endpoint string) (wasmstoragetypes.QueryDataRequestWasmsResponse, error) {
 	var res wasmstoragetypes.QueryDataRequestWasmsResponse
-
-	body, err := httpGet(fmt.Sprintf("%s/seda-chain/wasm-storage/data_request_wasms", endpoint))
-	if err != nil {
-		return res, err
-	}
-
-	if err = cdc.UnmarshalJSON(body, &res); err != nil {
-		return res, err
-	}
-	return res, nil
+	err := query(endpoint, "seda-chain/wasm-storage/data_request_wasms", &res)
+	return res, err
 }
 
 func queryOverlayWasms(endpoint string) (wasmstoragetypes.QueryOverlayWasmsResponse, error) {
 	var res wasmstoragetypes.QueryOverlayWasmsResponse
-
-	body, err := httpGet(fmt.Sprintf("%s/seda-chain/wasm-storage/overlay_wasms", endpoint))
-	if err != nil {
-		return res, err
-	}
-
-	if err = cdc.UnmarshalJSON(body, &res); err != nil {
-		return res, err
-	}
-	return res, nil
+	err := query(endpoint, "seda-chain/wasm-storage/overlay_wasms", &res)
+	return res, err
 }
 
 func queryProxyContractRegistry(endpoint string) (wasmstoragetypes.QueryProxyContractRegistryResponse, error) {
 	var res wasmstoragetypes.QueryProxyContractRegistryResponse
-
-	body, err := httpGet(fmt.Sprintf("%s/seda-chain/wasm-storage/proxy_contract_registry", endpoint))
-	if err != nil {
-		return res, err
-	}
-
-	if err = cdc.UnmarshalJSON(body, &res); err != nil {
-		return res, err
-	}
-	return res, nil
+	err := query(endpoint, "seda-chain/wasm-storage/proxy_contract_registry", &res)
+	return res, err
 }