diff --git a/modules/purchase/purchase.py b/modules/purchase/purchase.py
index 50a354e541..c8f63bc538 100644
--- a/modules/purchase/purchase.py
+++ b/modules/purchase/purchase.py
@@ -532,11 +532,14 @@ class Purchase(
             compute_taxes = True
         else:
             compute_taxes = False
-        # Sort cached first and re-instanciate to optimize cache management
-        purchases = sorted(purchases,
-            key=lambda p: p.state in cls._states_cached, reverse=True)
-        purchases = cls.browse(purchases)
+        # Browse separately not cached to limit number of lines read
+        cached, not_cached = [], []
         for purchase in purchases:
+            if purchase.state in cls._states_cached:
+                cached.append(purchase)
+            else:
+                not_cached.append(purchase)
+        for purchase in chain(cached, cls.browse(not_cached)):
             if (purchase.state in cls._states_cached
                     and purchase.untaxed_amount_cache is not None
                     and purchase.tax_amount_cache is not None
diff --git a/modules/purchase_requisition/purchase.py b/modules/purchase_requisition/purchase.py
index 95b7954906..9c03dc2aaf 100644
--- a/modules/purchase_requisition/purchase.py
+++ b/modules/purchase_requisition/purchase.py
@@ -259,11 +259,14 @@ class PurchaseRequisition(Workflow, ModelSQL, ModelView):
     def get_amount(cls, requisitions, name):
         total_amount = {}
 
-        # Sort cached first and re-instantiate to optimize cache management
-        requisitions = sorted(requisitions,
-            key=lambda r: r.state in cls._states_cached, reverse=True)
-        requisitions = cls.browse(requisitions)
+        # Browse separately not cached to limit number of lines read
+        cached, not_cached = [], []
         for requisition in requisitions:
+            if requisition.state in cls._states_cached:
+                cached.append(requisition)
+            else:
+                not_cached.append(requisition)
+        for requisition in chain(cached, cls.browse(not_cached)):
             if (requisition.state in cls._states_cached
                     and requisition.total_amount_cache is not None):
                 total_amount[requisition.id] = requisition.total_amount_cache
diff --git a/modules/sale/sale.py b/modules/sale/sale.py
index 97669e820e..268cd3ee75 100644
--- a/modules/sale/sale.py
+++ b/modules/sale/sale.py
@@ -587,11 +587,14 @@ class Sale(
             compute_taxes = True
         else:
             compute_taxes = False
-        # Sort cached first and re-instanciate to optimize cache management
-        sales = sorted(sales, key=lambda s: s.state in cls._states_cached,
-            reverse=True)
-        sales = cls.browse(sales)
+        # Browse separately not cached to limit number of lines read
+        cached, not_cached = [], []
         for sale in sales:
+            if sale.state in cls._states_cached:
+                cached.append(sale)
+            else:
+                not_cached.append(sale)
+        for sale in chain(cached, cls.browse(not_cached)):
             if (sale.state in cls._states_cached
                     and sale.untaxed_amount_cache is not None
                     and sale.tax_amount_cache is not None