Publishing rate of the elevation map decreases in time

[mohbenrabah]

Hello,
I'm trying to use the elevation mapping package for some autonomous driving applications with Carla simulator. In fact, my application needs a real time update of the map (min rate 10 hz) and the problem is that this rate is decreasing in time (by moving the vehicle). It seems like a memory management issue but still want to know if anyone encountered the same issue.
Thank you in advance.