Overview: Check-in of multiple items is too slow.
How to reproduce:
Enter the barcode of a loaned item.
Press the enter key or press the "+ Add item" button.
Now wait until a message about successful check-in appears and the barcode field gets wiped out for the next item.
Expected response time: Less than a second (or even faster).
Actual response time: More than 2 seconds, see attached screenshot.
If you enter the next item's barcode without waiting it gets wiped out. The "+ Add item" button and the enter key are disabled during wait time.
Check-in of 10 items currently takes more than 20 seconds, it should be less than 10 seconds (or even faster).