diff --git a/dist/hooks/use-form.js b/dist/hooks/use-form.js
index c2baeef..dd4ee0b 100644
--- a/dist/hooks/use-form.js
+++ b/dist/hooks/use-form.js
@@ -48,9 +48,17 @@ var actionTypes = {
 
 exports.actionTypes = actionTypes;
 
+/**
+ * Is field registered.
+ */
+function isFieldRegistered(action, state) {
+  return action.type === actionTypes.REGISTER_FIELD && state.fields.meta[action.payload.field];
+}
 /**
  * Values reducer.
  */
+
+
 var valuesReducer = function valuesReducer(state, action) {
   var payload = action.payload,
       type = action.type;
@@ -66,6 +74,10 @@ var valuesReducer = function valuesReducer(state, action) {
           newValue = payload.value;
         }
 
+        if (newValue === state[payload.field]) {
+          return state;
+        }
+
         return _objectSpread({}, state, _defineProperty({}, payload.field, newValue));
       }
 
@@ -85,6 +97,8 @@ var valuesReducer = function valuesReducer(state, action) {
 
 
 var metaReducer = function metaReducer(state, action) {
+  var _state$payload$field;
+
   var payload = action.payload,
       type = action.type;
 
@@ -96,6 +110,10 @@ var metaReducer = function metaReducer(state, action) {
       })));
 
     case actionTypes.SET_FIELD_VALUE:
+      if ((_state$payload$field = state[payload.field]) === null || _state$payload$field === void 0 ? void 0 : _state$payload$field.dirty) {
+        return state;
+      }
+
       return _objectSpread({}, state, _defineProperty({}, payload.field, _objectSpread({}, state[payload.field], {
         dirty: true
       })));
@@ -209,11 +227,15 @@ function isSubmittingReducer(state, action) {
 
 var formReducer = function formReducer(validate, stateReducer) {
   return function (state, action) {
+    if (isFieldRegistered(action, state)) {
+      return state;
+    }
+
     var fieldsValues = valuesReducer(state.fields.values, action);
     var fieldsMeta = metaReducer(state.fields.meta, action);
     var isSubmitting = isSubmittingReducer(state.isSubmitting, action);
     var submitStatus = submitStatusReducer(state.submitStatus, action);
-    var fieldsErrors = errorsReducer({
+    var fieldsErrors = fieldsValues === state.fields.values ? state.fields.errors : errorsReducer({
       action: action,
       state: state.fields.errors,
       validate: validate,
diff --git a/src/hooks/use-form.js b/src/hooks/use-form.js
index 0b57eb9..16ccbbd 100644
--- a/src/hooks/use-form.js
+++ b/src/hooks/use-form.js
@@ -113,6 +113,10 @@ const valuesReducer = (state, action) => {
         newValue = payload.value;
       }
 
+      if (newValue === state[payload.field]) {
+        return state;
+      }
+
       return {
         ...state,
         [payload.field]: newValue
@@ -152,6 +156,10 @@ const metaReducer = (state, action) => {
       };
 
     case actionTypes.SET_FIELD_VALUE:
+      if (state[payload.field]?.dirty) {
+        return state;
+      }
+
       return {
         ...state,
         [payload.field]: {
@@ -294,7 +302,7 @@ const formReducer = (validate: Object => FieldErrors, stateReducer: (state: Form
     const fieldsMeta = metaReducer(state.fields.meta, action);
     const isSubmitting = isSubmittingReducer(state.isSubmitting, action);
     const submitStatus = submitStatusReducer(state.submitStatus, action);
-    const fieldsErrors = errorsReducer({
+    const fieldsErrors = fieldsValues === state.fields.values ? state.fields.errors : errorsReducer({
       action,
       state: state.fields.errors,
       validate,