In your macOS computer settings, you can change your screen display resolution.
To do this, refer to this Apple article:
https://support.apple.com/en-ca/guide/mac-help/mchl86d72b76/15.0/mac/15.0
(A menu at the top left allows you to select your macOS version).
You may need to try a few different settings before finding the right one.
(Be careful not to go below 1366x768).
You can also change the font for certain fields via the "Heredis 20xx World" menu > Preferences:
Note: The version shown in the screenshots below may differ from yours, but the content of the article applies to your version as well.
Go to the Format tab :
You can also check the Appearance tab :
You can customize the font of each Heredis note individually.