If you encounter a performance speed issue in Tekla Structures even though that your computer's specifications are matching with our Hardware recommendations, the following tips can help:
1. Go to File > Settings > Advanced options. Search for XS_USE_SOFTWARE_RENDERING and set it to FALSE.
2. Downgrade the Graphic Card. If the graphic card driver is up to date but you still encounter problems in snapping and zooming performance, you can try to downgrade the graphic card driver. Sometimes downgrading the graphic card drivers to a lower version helps.
See also: Tekla Structures Performance Issues