diff --git a/internal/monitoring/collector.go b/internal/monitoring/collector.go
index 9b7ef9e..bf2e70d 100644
--- a/internal/monitoring/collector.go
+++ b/internal/monitoring/collector.go
@@ -77,8 +77,9 @@ func (c *Collector) Collect() SystemStats {
 }
 
 func (c *Collector) collectCPU(stats *SystemStats) {
-	// Get CPU usage percentage (this blocks for ~100ms to sample)
-	if cpuPercent, err := cpu.Percent(100*time.Millisecond, false); err == nil && len(cpuPercent) > 0 {
+	// Get CPU usage percentage (blocks for 1 second to get accurate sample)
+	// Shorter intervals can give inaccurate readings
+	if cpuPercent, err := cpu.Percent(time.Second, false); err == nil && len(cpuPercent) > 0 {
 		stats.CPU.UsagePercent = cpuPercent[0]
 	}