diff --git a/internal/clock/clock.go b/internal/clock/clock.go
index 40a8c98b0..612f78fab 100644
--- a/internal/clock/clock.go
+++ b/internal/clock/clock.go
@@ -57,6 +57,13 @@ func CurrentTPS() float64 {
 	return v
 }
 
+func max(a, b int64) int64 {
+	if a < b {
+		return b
+	}
+	return a
+}
+
 func calcCountFromTPS(tps int64, now int64) int {
 	if tps == 0 {
 		return 0
@@ -73,7 +80,10 @@ func calcCountFromTPS(tps int64, now int64) int {
 	count := 0
 	syncWithSystemClock := false
 
-	if diff > int64(time.Second)*5/int64(tps) {
+	// When TPS is big (e.g. 300), the time gap can be small and diff might always exceeds the gap.
+	// To avoid this, prepare another gap assuming TPS was 60 and use the bigger one (#1443).
+	tooBigGap := max(int64(time.Second)*5/int64(tps), int64(time.Second)*5/60)
+	if diff > tooBigGap {
 		// The previous time is too old.
 		// Let's force to sync the game time with the system clock.
 		syncWithSystemClock = true