Win10 Calculator app opens but remains blank for several seconds before displaying numbers

When you launch the Calculator app from the Start menu or the taskbar, the window pops up but remains blank for 3 to 5 seconds before the buttons and numbers appear.

During this time, clicking anywhere on the interface produces no response. This issue occurs more frequently after the system has been running for several days. Reinstalling the Calculator app via PowerShell does not resolve this delay.