First layer problem in a Tevo Tornado with Prusa slicer.

[Betoys]

Hi, i have aTEvo Tornado with BLT, E3d, Marlin 1.1.8 and i am trying to set up the Tevo Tornado in Prusa Slicer, printing with pla prusament at 205 C
at 0.2 layer high

but the first layer makes some funny lines, (attach image). printing with 0.4 nozzle at 60mm/s speed.
i have try 120% first layer high and 90% layer high. also increase the first layer speed but with no good results.
i already calibrate the E steps.

Please help me

[LePaul]

First, I'd slow down to 40mm/sec to debug this

Have you made sure the flow/extrusion multiplier is right? I don't use Prusa slicer but that looks too close to the bed and over extruded