diff --git a/Userland/Libraries/LibJS/Bytecode/Interpreter.cpp b/Userland/Libraries/LibJS/Bytecode/Interpreter.cpp
index c818d9c527..b747ce9b2e 100644
--- a/Userland/Libraries/LibJS/Bytecode/Interpreter.cpp
+++ b/Userland/Libraries/LibJS/Bytecode/Interpreter.cpp
@@ -208,6 +208,8 @@ Interpreter::ValueAndFrame Interpreter::run_and_return_frame(Realm& realm, Execu
     else
         push_call_frame(make<CallFrame>(), executable.number_of_registers);
 
+    TemporaryChange restore_this_value { m_this_value, {} };
+
     for (;;) {
         Bytecode::InstructionStreamIterator pc(m_current_block->instruction_stream());
         TemporaryChange temp_change { m_pc, &pc };
diff --git a/Userland/Libraries/LibJS/Bytecode/Interpreter.h b/Userland/Libraries/LibJS/Bytecode/Interpreter.h
index dfd57fe936..1c4e05883a 100644
--- a/Userland/Libraries/LibJS/Bytecode/Interpreter.h
+++ b/Userland/Libraries/LibJS/Bytecode/Interpreter.h
@@ -95,6 +95,8 @@ public:
 
     VM::InterpreterExecutionScope ast_interpreter_scope(Realm&);
 
+    Optional<Value>& this_value() { return m_this_value; }
+
     void visit_edges(Cell::Visitor&);
 
 private:
@@ -119,6 +121,7 @@ private:
     Span<Value> m_current_call_frame;
     Optional<BasicBlock const*> m_pending_jump;
     BasicBlock const* m_scheduled_jump { nullptr };
+    Optional<Value> m_this_value;
     Optional<Value> m_return_value;
     Optional<Value> m_saved_exception;
     Executable* m_current_executable { nullptr };
diff --git a/Userland/Libraries/LibJS/Bytecode/Op.cpp b/Userland/Libraries/LibJS/Bytecode/Op.cpp
index 1e37fd6aee..164ed5b829 100644
--- a/Userland/Libraries/LibJS/Bytecode/Op.cpp
+++ b/Userland/Libraries/LibJS/Bytecode/Op.cpp
@@ -732,8 +732,13 @@ ThrowCompletionOr<void> Jump::execute_impl(Bytecode::Interpreter& interpreter) c
 
 ThrowCompletionOr<void> ResolveThisBinding::execute_impl(Bytecode::Interpreter& interpreter) const
 {
-    auto& vm = interpreter.vm();
-    interpreter.accumulator() = TRY(vm.resolve_this_binding());
+    if (!interpreter.this_value().has_value()) {
+        // OPTIMIZATION: Because the value of 'this' cannot be reassigned during a function execution, it's
+        //               resolved once and then saved for subsequent use.
+        auto& vm = interpreter.vm();
+        interpreter.this_value() = TRY(vm.resolve_this_binding());
+    }
+    interpreter.accumulator() = interpreter.this_value().value();
     return {};
 }