I feel BPM should be 240, set BPM to 240 and reduce slider velocity a half (sliders won't changed any bit).
And this is what happened when you call me to mod swing rhythm song X_X
~Serval's Easy~
00:08:575 (3) - end on red tick
00:12:534 (3) - start on right purple tick
00:21:534 (4) - ^
00:51:534 (2) - ^
00:53:534 (2) - ^
~Normal~
00:01:409 (4) - end on right purple tick
00:01:784 (5) - start "-------------------"
00:03:409 (5) - end "--------------------"
00:03:784 (6) - start "-------------------"
00:05:409 (2) - end "--------------------"
00:06:159 (4) - start "-------------------"
00:09:409 (3) - end "--------------------"
00:09:784 (4) - start "-------------------"
00:10:159 (1,3) - end "------------------"
00:11:784 (4) - start "-------------------"
00:13:409 (2) - end "--------------------"
00:13:784 (3) - start "-------------------"
00:14:159 (1,3) - end "------------------"
00:15:784 (4) - start "-------------------"
00:16:159 (1) - end "--------------------"
00:17:534 (3) - start "-------------------"
00:25:159 (2) - end "--------------------"
00:29:159 (3) - ^
00:37:534 (4) - start on right purple tick
00:49:409 (2) - end "---------------------"
00:49:784 (3) - start "--------------------"
00:53:159 (2) - end "---------------------"
00:55:159 (2,4) - ^
00:59:159 (3) - ^
01:06:534 (2) - snap on right purple tick
01:07:159 (4) - end "---------------------"
~Hard~
00:03:409 (3,4,5,6) - previous spacings were closer than here :<
00:03:909 (1) - remove new combo
00:04:409 (2) - new combo
00:07:575 (2) - snap on right purple tick
00:09:534 (7,8) - ^
00:11:534 (3,4) - ^
00:12:534 (2,5) - ^
00:14:534 (2) - ^
00:15:534 (2) - ^
00:19:409 (8) - end on right purple tick
00:23:075 (6) - move 1/6 left
00:29:159 (2) - end on right purple tick
00:31:575 (1) - snap "-------------------"
00:33:159 (6) - end "--------------------"
00:35:159 (3) - ^
00:37:534 (4) - snap on right purple tick
00:39:575 (2) - ^
00:41:534 (4,5) - ^
00:43:034 (2,4) - ^
00:45:159 (3) - end on right purple tick
00:49:409 (2) - ^
00:49:784 (3) - start on right purple tick
00:51:159 (3) - end "---------------------"
00:53:159 (3) - ^
00:55:534 (3) - snap on right purple tick
00:59:409 (3) - end "---------------------"
01:01:034 (8) - start "--------------------"
01:05:534 (6) - snap "--------------------"
01:06:159 (2,4) - end "-------------------"
No star now, I'll recheck later.