Slow plasma on. curves

Hi Guys,

Trying to cut a shaped washer cuts great on the circle but not on curved part bit new to this using fusion for drawing slow bit is formed by 7 points and connecting its from jpeg scanned in and calibrated.
(Made in : Autodesk CAM Post Processor)
(G-Code optimized for Grbl 1.1 / BlackBox controller)
(OpenBuilds CNC : GRBL/BlackBox)
(Post-Processor : OpenbuildsFusion360PostGrbl.cps V1.0.37)
(Units = mm)
(Laser UseZ = false)
(Laser UsePierce = false)
(Arcs are limited to the XY plane: if you want vertical arcs then)
(edit allowedCircularPlanes in the CPS file)
(Drawing name : tiger headlight ring v1)
(Program Name : tigerhl)
(1 Operation
(1 : 2D Profile5)
( Tool 1: Plasma Cutter Diam = 0.8mm)
( Machining time : 0h:1m:11s)
G90 G94 G17
G21
(Plasma pierce height 2)
(Plasma topHeight 0)
(Operation 1 of 1 : 2D Profile5)
G54
(Plasma cutting with GRBL.)
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M5
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X-63.721 Y-78.967
X-63.848 Y-78.805
X-63.987 Y-78.63
X-64.14 Y-78.438
X-64.307 Y-78.228
X-64.493 Y-77.996
X-64.7 Y-77.739
X-64.813 Y-77.599
X-64.932 Y-77.452
X-65.059 Y-77.295
X-65.194 Y-77.128
X-65.338 Y-76.95
X-65.492 Y-76.761
X-65.658 Y-76.557
X-65.809 Y-76.371
X-68.484 Y-73.589
X-68.537 Y-73.529
X-73.324 Y-67.669
G2 X-73.549 Y-66.993 I0.774 J0.633
X-67.523 Y85.635 I73.549 J73.529
G1 X-70.77 Y89.438
M5
M5
M30



Thanks for help\

Max