# PMDG EFB Charts Very Laggy P3D

**URL:** <https://forum.navigraph.com/t/pmdg-efb-charts-very-laggy-p3d/17295>\
**Category:** General\
**Created:** [October 25, 2024, 11:40pm UTC](https://forum.navigraph.com/t/pmdg-efb-charts-very-laggy-p3d/17295 "2024-10-25T23:40:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![FSX2015](https://avatars.discourse-cdn.com/v4/letter/f/a9a28c/32.png) [@FSX2015](https://forum.navigraph.com/u/FSX2015)\
**Post date:** [October 25, 2024, 11:40pm UTC](https://forum.navigraph.com/t/pmdg-efb-charts-very-laggy-p3d/17295/1 "2024-10-25T23:40:50Z")

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Hi all.

As of late I find that the Navigraph charts on the PMDG 777 and 737 EFB are both very laggy. So when I’m zoomed out on the chart they are very slow to move around with my mouse and take a while to respond to zoom commands (like the chart is at 2-3 fps).

Furthermore when I zoom in by X amount, suddenly the charts are smooth and fluid in their movement in response to the mouse’s inputs.

I’m not sure whether this a PMDG thing or a Navigraph thing?