I went to a lake last weekend and wanted to take a vertical shot from above, so I ascended to 160m and took some pictures. I started to descend at around 20% battery level but the Spark wouldn’t go faster than ~0.7m/s so I had a hard time landing before the battery would die. It landed safely in my hand with 0% battery but I almost got a heart attack. I tried to switch to sport mode to get it down more quickly but that didn‘t help. Any ideas?