Periodic Stutter when using Navigraph Navdata

[RexColt]

When using Navigraph Navdata i get a cyclic lag pretty much exactly every 2.5 seconds as seen in the MainThread graph. This is very noticable and makes flying the plane unenjoyable.

Tried reinstalling just the plane. Tried reinstalling and deleting WASM folder and state.CFG. Even tried reinstalling the entire sim. Also tried some BIOS settings: Virtualisation, Multithreading, TPM, Secure Boot etc. Tried older GFX and chipset drivers and the "Fix problems using Windows Update" feature which essentially reinstalls Windows while keeping all the programs. Still Stuttering.

Only workaround that i found is setting Navdata to "Sim Default". In this case those periodic stutters instantly vanish, but im not sure what else it changes.

Had a similar issue in the 777-200ER and 200F but there the workaround is changing both Pilot and Copilot EFBs to a specific page. Here theres no such workaround. 

Specs: 7800X3D, 32GB DDR5, RTX 4070S, NVME SSD, (no throttling whatsoever and plenty thermal headroom confirmed via HWINFO)

This is in MSFS2024. Did not try it in MSFS2020 yet. 

 

Edited June 4 by RexColt

[RexColt]

This is also happening in MSFS2020. I cant use GLS and ILS with Sim Default Navdata though soo some support would be great.

[unairspace]

I can confirm. Sim stutters every 3 seconds. Using Navigraph data.

*(For 777 a temp walkaround is to enter a EFB page other than home page)

[frank_m]

I can also confirm the issue.

[CV409i]

Also have this issue with MSFS2020. I am also getting a terrible lag spike on landing with the latest update. I have "Auto Zoom" set to off. I am curious if Navigraph is what is causing the spike also?

[Fornax]

Same here. Bad stutter every 3,5sec.

Im on MS2024 SU3beta though.

5090, 7900x3d, 64gb ram.