anilla reactive benchmark
        function runVanillaReactiveBenchmark() {
            console.log('Starting vanilla reactive benchmark...');
            const container = document.getElementById('app');
            const rowCount = parseInt(document.getElementById('rowCount').value);
            const updateInterval = parseInt(document.getElementById('updateInterval').value);
            const updateType = document.getElementById('updateType').value;
            
            stopUpdates();
            cont