Local installations from a USB drive or network share finish much faster than web-based streaming installations. System Requirements for Visio 2019 64-Bit

Microsoft Visio 2019 Professional (64-bit) remains a highly capable, industry-standard diagramming tool for users needing a perpetual (non-subscription) license, providing a stable, offline-capable environment for creating complex flowcharts, network diagrams, and floor plans

Install Visio or access Visio for the web - Microsoft Support

: Download the multi-gigabyte package once and deploy it across several machines without taxing your internet bandwidth.