diff --git a/backend/framework/domain/src/main/resources/migration/3.0.0/ddl/V3.0.0_12__beta_ddl.sql b/backend/framework/domain/src/main/resources/migration/3.0.0/ddl/V3.0.0_12__beta_ddl.sql
index 9cbaacecf2..1e22bf0f56 100644
--- a/backend/framework/domain/src/main/resources/migration/3.0.0/ddl/V3.0.0_12__beta_ddl.sql
+++ b/backend/framework/domain/src/main/resources/migration/3.0.0/ddl/V3.0.0_12__beta_ddl.sql
@@ -173,6 +173,9 @@ ALTER TABLE test_plan DROP INDEX uq_name_project;
 CREATE INDEX idx_report_id ON api_scenario_report_step(report_id);
 
 
+CREATE INDEX idx_source_id ON operation_history(`source_id`);
+
+
 -- set innodb lock wait timeout to default
 SET SESSION innodb_lock_wait_timeout = DEFAULT;
 
diff --git a/backend/services/case-management/src/main/java/io/metersphere/functional/controller/FunctionalCaseController.java b/backend/services/case-management/src/main/java/io/metersphere/functional/controller/FunctionalCaseController.java
index 079e2cf89e..13aed1add5 100644
--- a/backend/services/case-management/src/main/java/io/metersphere/functional/controller/FunctionalCaseController.java
+++ b/backend/services/case-management/src/main/java/io/metersphere/functional/controller/FunctionalCaseController.java
@@ -90,7 +90,7 @@ public class FunctionalCaseController {
     @CheckOwner(resourceId = "#id", resourceType = "functional_case")
     public FunctionalCaseDetailDTO getFunctionalCaseDetail(@PathVariable String id) {
         String userId = SessionUtils.getUserId();
-        return functionalCaseService.getFunctionalCaseDetail(id, userId);
+        return functionalCaseService.getFunctionalCaseDetail(id, userId, true);
     }
 
 
diff --git a/backend/services/case-management/src/main/java/io/metersphere/functional/service/FunctionalCaseService.java b/backend/services/case-management/src/main/java/io/metersphere/functional/service/FunctionalCaseService.java
index 9b94d607f4..8d52838cc3 100644
--- a/backend/services/case-management/src/main/java/io/metersphere/functional/service/FunctionalCaseService.java
+++ b/backend/services/case-management/src/main/java/io/metersphere/functional/service/FunctionalCaseService.java
@@ -339,7 +339,7 @@ public class FunctionalCaseService {
      * @param functionalCaseId functionalCaseId
      * @return FunctionalCaseDetailDTO
      */
-    public FunctionalCaseDetailDTO getFunctionalCaseDetail(String functionalCaseId, String userId) {
+    public FunctionalCaseDetailDTO getFunctionalCaseDetail(String functionalCaseId, String userId, boolean checkDetailCount) {
         FunctionalCase functionalCase = checkFunctionalCase(functionalCaseId);
         FunctionalCaseDetailDTO functionalCaseDetailDTO = new FunctionalCaseDetailDTO();
         BeanUtils.copyBean(functionalCaseDetailDTO, functionalCase);
@@ -369,9 +369,10 @@ public class FunctionalCaseService {
         //模块名称
         handDTO(functionalCaseDetailDTO);
 
-
-        //处理已关联需求数量/缺陷数量/用例数量
-        handleCount(functionalCaseDetailDTO);
+        if (checkDetailCount) {
+            //处理已关联需求数量/缺陷数量/用例数量
+            handleCount(functionalCaseDetailDTO);
+        }
 
         return functionalCaseDetailDTO;
 
@@ -442,8 +443,7 @@ public class FunctionalCaseService {
         //获取变更历史数量数量
         OperationHistoryExample operationHistoryExample = new OperationHistoryExample();
         List<String> types = List.of(OperationLogType.ADD.name(), OperationLogType.IMPORT.name(), OperationLogType.UPDATE.name());
-        List<String> modules = List.of(OperationLogModule.FUNCTIONAL_CASE);
-        operationHistoryExample.createCriteria().andSourceIdEqualTo(functionalCaseDetailDTO.getId()).andTypeIn(types).andModuleIn(modules);
+        operationHistoryExample.createCriteria().andSourceIdEqualTo(functionalCaseDetailDTO.getId()).andModuleEqualTo(OperationLogModule.FUNCTIONAL_CASE).andTypeIn(types);
         functionalCaseDetailDTO.setHistoryCount((int) operationHistoryMapper.countByExample(operationHistoryExample));
 
     }
@@ -482,12 +482,17 @@ public class FunctionalCaseService {
         TemplateDTO templateDTO = projectTemplateService.getTemplateDTOById(functionalCase.getTemplateId(), functionalCase.getProjectId(), TemplateScene.FUNCTIONAL.name());
         if (CollectionUtils.isNotEmpty(templateDTO.getCustomFields())) {
             List<TemplateCustomFieldDTO> customFields = templateDTO.getCustomFields();
+            List<String> fieldIds = customFields.stream().map(TemplateCustomFieldDTO::getFieldId).distinct().toList();
+            FunctionalCaseCustomFieldExample example = new FunctionalCaseCustomFieldExample();
+            example.createCriteria().andCaseIdEqualTo(functionalCase.getId()).andFieldIdIn(fieldIds);
+            List<FunctionalCaseCustomField> functionalCaseCustomFields = functionalCaseCustomFieldMapper.selectByExample(example);
+            Map<String, FunctionalCaseCustomField> customFieldMap = functionalCaseCustomFields.stream().collect(Collectors.toMap(FunctionalCaseCustomField::getFieldId, t -> t));
             List<CustomFieldOption> memberCustomOption = getMemberOptions(functionalCase.getProjectId());
             customFields.forEach(item -> {
                 if (StringUtils.equalsAnyIgnoreCase(item.getType(), CustomFieldType.MEMBER.name(), CustomFieldType.MULTIPLE_MEMBER.name())) {
                     item.setOptions(memberCustomOption);
                 }
-                FunctionalCaseCustomField caseCustomField = functionalCaseCustomFieldService.getCustomField(item.getFieldId(), functionalCase.getId());
+                FunctionalCaseCustomField caseCustomField =  customFieldMap.get(item.getFieldId());
                 Optional.ofNullable(caseCustomField).ifPresentOrElse(customField -> {
                     item.setDefaultValue(customField.getValue());
                     if (Translator.get("custom_field.functional_priority").equals(item.getFieldName())) {
diff --git a/backend/services/test-plan/src/main/java/io/metersphere/plan/service/TestPlanFunctionalCaseService.java b/backend/services/test-plan/src/main/java/io/metersphere/plan/service/TestPlanFunctionalCaseService.java
index 1f762fbc8f..16f6205b0d 100644
--- a/backend/services/test-plan/src/main/java/io/metersphere/plan/service/TestPlanFunctionalCaseService.java
+++ b/backend/services/test-plan/src/main/java/io/metersphere/plan/service/TestPlanFunctionalCaseService.java
@@ -91,8 +91,6 @@ public class TestPlanFunctionalCaseService extends TestPlanResourceService {
     @Resource
     private BugRelationCaseMapper bugRelationCaseMapper;
     @Resource
-    private TestPlanModuleService testPlanModuleService;
-    @Resource
     private ExtTestPlanModuleMapper extTestPlanModuleMapper;
     @Resource
     private FunctionalCaseModuleService functionalCaseModuleService;
@@ -553,7 +551,7 @@ public class TestPlanFunctionalCaseService extends TestPlanResourceService {
     public TestPlanCaseDetailResponse getFunctionalCaseDetail(String id, String userId) {
         TestPlanFunctionalCase planFunctionalCase = testPlanFunctionalCaseMapper.selectByPrimaryKey(id);
         String caseId = planFunctionalCase.getFunctionalCaseId();
-        FunctionalCaseDetailDTO functionalCaseDetail = functionalCaseService.getFunctionalCaseDetail(caseId, userId);
+        FunctionalCaseDetailDTO functionalCaseDetail = functionalCaseService.getFunctionalCaseDetail(caseId, userId, false);
         String caseDetailSteps = functionalCaseDetail.getSteps();
         List<TestPlanCaseExecuteHistory> testPlanCaseExecuteHistories = extTestPlanCaseExecuteHistoryMapper.selectSteps(id, caseId);
         Integer runListCount = 0;