1st you can reinstall your Composer

Download the last version of Composer frp, asiga.com

Find in "Windows Apps and Feature" the installed Composer program and uninstall it.

Start the downloaded Composer installation pack as administrator and complete installation.

Check how it is working


2nd thing could be graphics drivers or preferred graphics card for the system.

Download and install the last version of drivers for your Graphic card

To select the preferred video card for Composer, do next

Press Win+Q and type "Graphics Settings"

Click Browse and find installed Composer on your computer.

By default, it is installed in C:\Program Files\Asiga\Composer\composer.exe

Composer will appear in the list of programs.

Press Options and select High Performance.