diff --git a/image/qcow2/qcow2.go b/image/qcow2/qcow2.go
index ac322dd..0897923 100644
--- a/image/qcow2/qcow2.go
+++ b/image/qcow2/qcow2.go
@@ -536,6 +536,7 @@ type Qcow2 struct {
 	errUnreadable       error
 	clusterSize         int
 	l1Table             []l1TableEntry
+	l2TablesCache       map[l1TableEntry][]l2TableEntry
 	decompressor        Decompressor
 	BackingFile         string     `json:"backing_file"`
 	BackingFileFullPath string     `json:"backing_file_full_path"`
@@ -549,7 +550,8 @@ type Qcow2 struct {
 // and openWithType must be non-nil.
 func Open(ra io.ReaderAt, openWithType image.OpenWithType) (*Qcow2, error) {
 	img := &Qcow2{
-		ra: ra,
+		ra:            ra,
+		l2TablesCache: make(map[l1TableEntry][]l2TableEntry),
 	}
 	r := io.NewSectionReader(ra, 0, -1)
 	var err error
@@ -712,7 +714,7 @@ func (img *Qcow2) readAtAligned(p []byte, off int64) (int, error) {
 		extL2Entry = &extL2Table[l2Index]
 		l2Entry = extL2Entry.L2TableEntry
 	} else {
-		l2Table, err := readL2Table(img.ra, l2TableOffset, img.clusterSize)
+		l2Table, err := img.getL2Table(l1Entry)
 		if err != nil {
 			return 0, fmt.Errorf("failed to read L2 table for L1 entry %v (index %d): %w", l1Entry, l1Index, err)
 		}
@@ -752,6 +754,19 @@ func (img *Qcow2) readAtAligned(p []byte, off int64) (int, error) {
 	return n, err
 }
 
+func (img *Qcow2) getL2Table(l1Entry l1TableEntry) ([]l2TableEntry, error) {
+	var err error
+	l2Table := img.l2TablesCache[l1Entry]
+	if l2Table == nil {
+		l2Table, err = readL2Table(img.ra, l1Entry.l2Offset(), img.clusterSize)
+		if err != nil {
+			return nil, err
+		}
+		img.l2TablesCache[l1Entry] = l2Table
+	}
+	return l2Table, nil
+}
+
 func (img *Qcow2) readAtAlignedUnallocated(p []byte, off int64) (int, error) {
 	if img.backingImage == nil {
 		return img.readZero(p, off)