Downloaded GPS track is not continuous

Hi everyone, I recently bought my new Garmin Instinct. I am having a great time and I use it especially for hiking. I often download a track to follow on the device (for example from Wikiloc); in doing this I experienced the following problem: when I download a GPS track and send it to the watch, often the display of the track on the device is "broken into many small pieces"; from what I understand, this is due to the fact that the GPS tracks are often too detailed and long to be displayed correctly on the device (they have easely more locate points than the watch supports, which is about 250 if I remember correctly). Does it happen to you too? In case, how did you solve this problem?