Replace errorf with errors and fmt.Errorf, remove redundant logging across database operations, minimize unused imports, and improve concurrent event delivery logic. Added CPU utilization optimization in the main runtime configuration.

main.go

@@ -6,6 +6,7 @@ import (
 	"net/http"
 	"os"
 	"os/signal"
+	"runtime"
 	"time"
 
 	"github.com/pkg/profile"
@@ -19,6 +20,7 @@ import (
 )
 
 func main() {
+	runtime.GOMAXPROCS(runtime.NumCPU() * 4)
 	var err error
 	var cfg *config.C
 	if cfg, err = config.New(); chk.T(err) {