Sliderend Time Calculations isn't Accurate

[Patipol-BKK]

Calculations for the slider end_time seems to be a bit off from when viewing in-game even with linear ones.

Parsed object denotes end-time at 24256:

{'startTime': 24028, 'newCombo': 4, 'soundTypes': ['normal'], 'position': [435, 247], 'object_name': 'slider', 'repeatCount': 3, 'pixelLength': 43, 'additions': {}, 'edges': [{'soundTypes': ['normal'], 'additions': {}}, {'soundTypes': ['whistle'], 'additions': {}}, {'soundTypes': ['normal'], 'additions': {}}, {'soundTypes': ['whistle'], 'additions': {}}], 'points': [[435, 247], [476, 257]], 'duration': 228, 'end_time': 24256, 'curveType': 'linear', 'end_position': [477, 257]}

Actual in-game end-time is at 24253: