Despite NavimetriX's constant focus on optimisation, the wide variety of devices that can be used makes it impossible to guarantee optimal performance in every case. The prerequisites stated in the FAQ (1) are sometimes not enough, as technical specifications can be limiting on certain device ranges. It is therefore advisable to take precautionary measures to minimise the malfunctions that may be encountered.
Unexpected closure on launch or during use
Saved routings are reloaded at every start-up and stored on our servers for synchronisation. Ensemble routings are particularly heavy. If the application closes right after opening, start by deleting outdated routings.
Only keep routings currently in use. A routing is only valid for the lifetime of the weather models it uses. Once it has expired, there is no need to keep it. If necessary, you can export it, or turn it into a route with “Convert to route”.
RAM saturation can also cause unexpected closures during use, when launching a resource-intensive function: end of a long routing with an "Isochrone duration" that is too short, or an ensemble routing.
Degraded display
Sluggishness during screen interactions (zoom +/- functions, scrolling), or the appearance of black areas (partial or total loss of chart display) are often caused by RAM saturation on poorly equipped devices. Make sure to close and quit unused applications to free up RAM.
Also, to improve smoothness, the heaviest layers to disable in the Layers menu are “AIS targets” and “Weather stations”. For the track, switch the ongoing track to “Short” (last 20 minutes): Tracks tab, â‹® button of the “Ongoing” row > Display > Live track extent. Also hide saved tracks (eye checkbox) in the Tracks tab. Displaying GRIBs as particles is also graphics-intensive and drains the battery. Prefer arrow or barb display while navigating.
Finally, Settings > General > Energy saving slows down the refresh rate of the instruments, the internal GPS and the alarms, and turns off the animated wind and current particles.
(1) See also: What are the minimum operating system versions?