Index: lams_tool_assessment/src/java/org/lamsfoundation/lams/tool/assessment/service/AssessmentServiceImpl.java
===================================================================
diff -u -r1cd4b23e16f8e4c341012698ddf539f8ee6bdf95 -ra13c7c0eabe99a281bc65537d779610d07a56f04
--- lams_tool_assessment/src/java/org/lamsfoundation/lams/tool/assessment/service/AssessmentServiceImpl.java	(.../AssessmentServiceImpl.java)	(revision 1cd4b23e16f8e4c341012698ddf539f8ee6bdf95)
+++ lams_tool_assessment/src/java/org/lamsfoundation/lams/tool/assessment/service/AssessmentServiceImpl.java	(.../AssessmentServiceImpl.java)	(revision a13c7c0eabe99a281bc65537d779610d07a56f04)
@@ -45,6 +45,7 @@
 import java.util.TreeMap;
 import java.util.TreeSet;
 import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
 import java.util.function.Function;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;
@@ -194,6 +195,8 @@
 
     private ILearnerInteractionService learnerInteractionService;
 
+    private final Map<Long, Boolean> LEARNER_RESULTS_UPDATED_MAP = new ConcurrentHashMap<>();
+
     // *******************************************************************************
     // Service method
     // *******************************************************************************
@@ -659,6 +662,10 @@
 	    }
 	}
 
+	if (isAnswerModified) {
+	    LEARNER_RESULTS_UPDATED_MAP.put(assessment.getContentId(), true);
+	}
+
 	// store finished date only on user hitting submit all answers button (and not submit mark hedging
 	// question)
 	int maximumGrade = 0;
@@ -795,6 +802,13 @@
 	return questionResult;
     }
 
+    @Override
+    public boolean isAnswersUpdated(long toolContentId) {
+	Boolean isAnswersUpdated = LEARNER_RESULTS_UPDATED_MAP.get(toolContentId);
+	LEARNER_RESULTS_UPDATED_MAP.put(toolContentId, false);
+	return isAnswersUpdated == null ? true : isAnswersUpdated;
+    }
+
     /**
      *
      * @return grade that user scored by answering that question
Index: lams_tool_assessment/src/java/org/lamsfoundation/lams/tool/assessment/service/IAssessmentService.java
===================================================================
diff -u -rd2fae62bad612aad30c914422eea4e0316fc4be1 -ra13c7c0eabe99a281bc65537d779610d07a56f04
--- lams_tool_assessment/src/java/org/lamsfoundation/lams/tool/assessment/service/IAssessmentService.java	(.../IAssessmentService.java)	(revision d2fae62bad612aad30c914422eea4e0316fc4be1)
+++ lams_tool_assessment/src/java/org/lamsfoundation/lams/tool/assessment/service/IAssessmentService.java	(.../IAssessmentService.java)	(revision a13c7c0eabe99a281bc65537d779610d07a56f04)
@@ -239,6 +239,8 @@
     boolean storeUserAnswers(Assessment assessment, Long userId, List<Set<QuestionDTO>> pagedQuestions,
 	    boolean isAutosave) throws IllegalAccessException, InvocationTargetException, NoSuchMethodException;
 
+    boolean isAnswersUpdated(long toolContentId);
+
     void loadupLastAttempt(Long assessmentUid, Long userId, List<Set<QuestionDTO>> pagedQuestionDtos);
 
     /**
Index: lams_tool_assessment/src/java/org/lamsfoundation/lams/tool/assessment/web/controller/MonitoringController.java
===================================================================
diff -u -r94c22f07fdd57d3e9279cb754909bb3dbe0bc0ee -ra13c7c0eabe99a281bc65537d779610d07a56f04
--- lams_tool_assessment/src/java/org/lamsfoundation/lams/tool/assessment/web/controller/MonitoringController.java	(.../MonitoringController.java)	(revision 94c22f07fdd57d3e9279cb754909bb3dbe0bc0ee)
+++ lams_tool_assessment/src/java/org/lamsfoundation/lams/tool/assessment/web/controller/MonitoringController.java	(.../MonitoringController.java)	(revision a13c7c0eabe99a281bc65537d779610d07a56f04)
@@ -274,15 +274,19 @@
     @ResponseBody
     public Flux<String> getCompletionChartsDataFlux(@RequestParam long toolContentId)
 	    throws JsonProcessingException, IOException {
-	return Flux.interval(Duration.ZERO, Duration.ofSeconds(5)).map(sequence -> {
+	return Flux.interval(Duration.ZERO, Duration.ofSeconds(1)).map(sequence -> {
+	    boolean isAnswersUpdated = service.isAnswersUpdated(toolContentId);
+	    if (!isAnswersUpdated) {
+		return "";
+	    }
 	    String chartData = null;
 	    try {
 		chartData = getCompletionChartsData(toolContentId);
 	    } catch (IOException e) {
 		log.error(e);
 	    }
 	    return chartData;
-	}).distinctUntilChanged();
+	}).filter(chartData -> !chartData.isBlank()).distinctUntilChanged();
     }
 
     private String getCompletionChartsData(long toolContentId) throws JsonProcessingException, IOException {