In P3D v5 LM changed the way road traffic is defined.

The thread below explains,

https://www.prepar3d.com/forum/viewtopic.php?t=143897

Cheers

On 5/6/2025 at 12:41 AM, dave2013 said:

I had that issue with P3Dv4 and v5 having stuttering, jerky road traffic.

P3Dv6 has smoother road traffic.

Dave

I don't know about v6 but yes v4 & 5 does have somewhat jerky road traffic that's very visible when close.

However it is possible to make road traffic super smooth with Lossless Scaling, but you need to run the sim at 1/3 the target LS frame rate, e.g. 20 fps (sim) and 60 fps (LS), result will be the road traffic runs smooth, must have something to do with the fps the default road traffic runs at.

This short vid made when I was first evaluating Lossless Scaling shows the road traffic smoothing effect.

Cheers

On 8/24/2025 at 8:47 PM, Rogen said:

I don't know about v6 but yes v4 & 5 does have somewhat jerky road traffic that's very visible when close.

However it is possible to make road traffic super smooth with Lossless Scaling, but you need to run the sim at 1/3 the target LS frame rate, e.g. 20 fps (sim) and 60 fps (LS), result will be the road traffic runs smooth, must have something to do with the fps the default road traffic runs at.

This short vid made when I was first evaluating Lossless Scaling shows the road traffic smoothing effect.

Cheers

Wow, the road traffic looks perfectly smooth, and so is the simulator too.  I will definitely be trying Lossless Scaling soon.  By the way, I absolutely love flying right over the buildings and treetops in small GA planes like you did in this video, it's endless fun 🙂