That's where it's processing and generating a new sector. What sort of CPU do you have?
Intel i7-8705G
it's not just jumping to a new sector. moving two inches through the blackness of space will cause the program to freeze for 30 seconds or longer.
CUK Intel Hades Canyon NUC Mini Compact Gamer PC (Intel i7-8705G, 16GB DDR4 RAM, 500GB NVMe SSD, AMD Radeon RX Vega M GL, Windows 10 Home) Tiny Gaming Desktop Computer - Thunderbolt 3, 4K Support
win 10