Batch insertion performance optimization

Src/Asp.Net/SqlSugar/Abstract/SqlBuilderProvider/InsertBuilder.cs

@@ -126,6 +126,14 @@ namespace SqlSugar
             {
                 StringBuilder batchInsetrSql = new StringBuilder();
                 int pageSize = 200;
+                if (this.EntityInfo.Columns.Count > 30)
+                {
+                    pageSize = 50;
+                }
+                else if (this.EntityInfo.Columns.Count > 20)
+                {
+                    pageSize = 100;
+                }
                 int pageIndex = 1;
                 int totalRecord = groupList.Count;
                 int pageCount = (totalRecord + pageSize - 1) / pageSize;