Solution
Acting on the DPI could be possible to improve the visualization of the block diagram.
Follow the procedure below:
1. Go to Windows ‘Start’ menu.2. Search for LabVIEW App and right-click.3. Click ‘Open file location’.4. Right-click on LabVIEW and click ‘Properties’.5. Select the ‘Compatibility’ tab and click ‘Change high DPI settings’.6. Tick the box ‘Override high DPI scaling behaviour’ and click ‘OK’.7. In the ‘Properties’ window, still on the tab ‘Compatibility’, click ‘Apply’.8. Then go to the Windows settings and select Display Resolution
10. Put 'scale and layout' to 100%
11. Launch LabVIEW.