About 2 days ago I started to download Ethereum's blockchain with Parity. After a while, I tried to start Parity with a few flags parity --geth --ui-interface 0.0.0.0 --ui-no-validation, so I would be possible to run Parity UI from any localhost instance.
Right after it, the syncing velocity fell down terrifically (sometimes it was ~30 blk/s before):
2016-12-04 20:44:00 Syncing #2344834 f9ee…4664 0 blk/s 0 tx/s 0 Mgas/s 0+ 0 Qed #2344834 7/ 8/25 peers 4 MiB db 223 KiB chain 0 bytes queue 149 KiB sync
2016-12-04 20:44:13 Syncing #2344834 f9ee…4664 0 blk/s 0 tx/s 0 Mgas/s 0+ 0 Qed #2344834 7/ 8/25 peers 4 MiB db 223 KiB chain 0 bytes queue 630 KiB sync
2016-12-04 20:44:13 Syncing #2344834 f9ee…4664 0 blk/s 0 tx/s 0 Mgas/s 0+ 0 Qed #2344834 7/ 8/25 peers 4 MiB db 223 KiB chain 0 bytes queue 630 KiB sync
2016-12-04 20:44:23 Syncing #2344834 f9ee…4664 0 blk/s 0 tx/s 0 Mgas/s 0+ 0 Qed #2344834 2/ 3/25 peers 4 MiB db 223 KiB chain 0 bytes queue 709 KiB sync
2016-12-04 20:44:28 Syncing #2344843 e2d8…1c10 1 blk/s 8 tx/s 1 Mgas/s 84+ 0 Qed #2344928 2/ 2/25 peers 5 MiB db 229 KiB chain 367 KiB queue 845 KiB sync
2016-12-04 20:44:46 Syncing #2344855 68cf…6d5c 2 blk/s 25 tx/s 1 Mgas/s 740+ 0 Qed #2345604 6/ 7/25 peers 6 MiB db 268 KiB chain 3 MiB queue 527 KiB sync
2016-12-04 20:44:50 Syncing #2344855 68cf…6d5c 0 blk/s 0 tx/s 0 Mgas/s 740+ 0 Qed #2345604 6/ 7/25 peers 6 MiB db 268 KiB chain 3 MiB queue 606 KiB sync
2016-12-04 20:44:50 Syncing #2344855 68cf…6d5c 0 blk/s 0 tx/s 0 Mgas/s 740+ 0 Qed #2345604 6/ 7/25 peers 6 MiB db 268 KiB chain 3 MiB queue 606 KiB sync
2016-12-04 20:44:58 Syncing #2344855 68cf…6d5c 0 blk/s 0 tx/s 0 Mgas/s 866+ 0 Qed #2345722 2/ 3/25 peers 6 MiB db 268 KiB chain 3 MiB queue 614 KiB sync
2016-12-04 20:45:05 Syncing #2344855 68cf…6d5c 0 blk/s 0 tx/s 0 Mgas/s 1248+ 0 Qed #2346107 5/ 6/25 peers 6 MiB db 268 KiB chain 4 MiB queue 372 KiB sync
2016-12-04 20:45:16 Syncing #2344855 68cf…6d5c 0 blk/s 0 tx/s 0 Mgas/s 1251+ 0 Qed #2346107 5/ 6/25 peers 6 MiB db 268 KiB chain 4 MiB queue 611 KiB sync
2016-12-04 20:45:30 Syncing #2344855 68cf…6d5c 0 blk/s 0 tx/s 0 Mgas/s 1680+ 0 Qed #2346536 4/ 5/25 peers 6 MiB db 268 KiB chain 6 MiB queue 618 KiB sync
2016-12-04 20:45:35 Syncing #2344855 68cf…6d5c 0 blk/s 0 tx/s 0 Mgas/s 1680+ 0 Qed #2346613 4/ 5/25 peers 6 MiB db 268 KiB chain 6 MiB queue 651 KiB sync
2016-12-04 20:45:52 Syncing #2344855 68cf…6d5c 0 blk/s 0 tx/s 0 Mgas/s 2137+ 0 Qed #2346993 5/ 6/25 peers 6 MiB db 268 KiB chain 7 MiB queue 653 KiB sync
2016-12-04 20:45:52 Syncing #2344855 68cf…6d5c 0 blk/s 0 tx/s 0 Mgas/s 2137+ 0 Qed #2347120 5/ 6/25 peers 6 MiB db 268 KiB chain 7 MiB queue 573 KiB sync
2016-12-04 20:46:03 Syncing #2344855 68cf…6d5c 0 blk/s 0 tx/s 0 Mgas/s 2264+ 0 Qed #2347120 5/ 6/25 peers 6 MiB db 268 KiB chain 8 MiB queue 732 KiB sync
2016-12-04 20:46:03 Syncing #2344855 68cf…6d5c 0 blk/s 0 tx/s 0 Mgas/s 2264+ 0 Qed #2347120 5/ 6/25 peers 6 MiB db 268 KiB chain 8 MiB queue 732 KiB sync
2016-12-04 20:46:16 Syncing #2344855 68cf…6d5c 0 blk/s 0 tx/s 0 Mgas/s 2772+ 0 Qed #2347628 4/ 5/25 peers 6 MiB db 268 KiB chain 9 MiB queue 573 KiB sync
2016-12-04 20:46:38 Syncing #2344855 68cf…6d5c 0 blk/s 0 tx/s 0 Mgas/s 3026+ 0 Qed #2347882 4/ 5/25 peers 6 MiB db 268 KiB chain 10 MiB queue 733 KiB sync
2016-12-04 20:46:38 Syncing #2344855 68cf…6d5c 0 blk/s 0 tx/s 0 Mgas/s 3026+ 0 Qed #2347882 3/ 4/25 peers 6 MiB db 268 KiB chain 10 MiB queue 733 KiB sync
2016-12-04 20:46:38 Syncing #2344855 68cf…6d5c 0 blk/s 0 tx/s 0 Mgas/s 3026+ 0 Qed #2347882 3/ 4/25 peers 6 MiB db 268 KiB chain 10 MiB queue 733 KiB sync
2016-12-04 20:46:38 Syncing #2344855 68cf…6d5c 0 blk/s 0 tx/s 0 Mgas/s 3026+ 0 Qed #2347882 3/ 4/25 peers 6 MiB db 268 KiB chain 10 MiB queue 733 KiB sync
2016-12-04 20:46:48 Syncing #2344855 68cf…6d5c 0 blk/s 0 tx/s 0 Mgas/s 3140+ 0 Qed #2348105 5/ 6/25 peers 6 MiB db 268 KiB chain 10 MiB queue 747 KiB sync
2016-12-04 20:47:05 Syncing #2344855 68cf…6d5c 0 blk/s 0 tx/s 0 Mgas/s 3535+ 0 Qed #2348391 5/ 6/25 peers 6 MiB db 268 KiB chain 11 MiB queue 1 MiB sync
2016-12-04 20:47:05 Syncing #2344855 68cf…6d5c 0 blk/s 0 tx/s 0 Mgas/s 3535+ 0 Qed #2348391 5/ 6/25 peers 6 MiB db 268 KiB chain 11 MiB queue 1 MiB sync
2016-12-04 20:47:15 Syncing #2344855 68cf…6d5c 0 blk/s 0 tx/s 0 Mgas/s 3789+ 0 Qed #2348898 4/ 5/25 peers 6 MiB db 268 KiB chain 13 MiB queue 807 KiB sync
2016-12-04 20:47:26 Syncing #2344855 68cf…6d5c 0 blk/s 0 tx/s 0 Mgas/s 4296+ 0 Qed #2349152 4/ 5/25 peers 6 MiB db 268 KiB chain 14 MiB queue 807 KiB sync
What is the reason and how can I fix it? I tried to stop / start Parity without any flags, restarted the laptop but it didn't help.
