unexpected cpu usage

[mclarekin]

Woke up with unexpected cpu usage
must of accidently hit Low quality optimization before i fell asleep (as i never use optimization), raystep had been updated to calculated optimized value (DE_factor 0.6259765625; ) but cpu was still in use at 17% ( official release version 2,28 win64)

Mandelbulber settings file

version 2.28

only modified parameters

[main_parameters]
ambient_occlusion_enabled true;
background_3_colors_enable false;
background_color_1 9100 da00 da00;
camera 0 -3.03108891324552 1.74999999999999;
camera_distance_to_target 3.49999999999998;
camera_rotation 0 -30 0;
camera_top 0 0.5 0.866025403784439;
DE_factor 0.6259765625;
delta_DE_function 1;
detail_level 2;
dont_add_c_constant_2 true;
flight_last_to_render 0;
formula_1 10000;
formula_2 186;
formula_3 220;
formula_start_iteration_3 5;
formula_stop_iteration_1 1;
fractal_enable_3 false;
hybrid_fractal_enable true;
image_proportion 3;
image_width 900;
keyframe_last_to_render 0;
light1_is_defined true;
light1_rotation 0 0 0;
mat1_coloring_speed 0.27;
mat1_is_defined true;
mat1_surface_color_gradient 0 fd6029 1000 698403 2000 aaffff 3000 f5bd22 4000 0b5e87 5000 c68876 6000 a51c64 7000 3b9fee 8000 d4ffd4 9000 aba53c;
N 60;
target 0 0 -8.88178419700125e-16;
[fractal_1]
formula_code 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;
transf_addCpixel_enabled false;
transf_function_enabledC_false true;
transf_function_enabledD_false true;
transf_int8_X 16;
transf_offset_02 0.261566339115015;
transf_rotation 0 0 8.69999999999999;
transf_scale3D_111 1 -0.932128588887837 1;
transf_scale_4 2;
[fractal_2]
formula_code 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;
mandelbox_scale 1.3;
transf_addCpixel_enabled false;
transf_addition_constant 0 0 1;
transf_addition_constant_111 1.5 1.5 1;
transf_addition_constantA_000 0 0 1;
transf_function_enabledAy_false true;
transf_minR2_p25 0.1;
transf_offset_001 0.9 0 1;
transf_offset_02 0.0625;
transf_offset_1111 1.3 8 1 1;
transf_rotation 0 2 23;
transf_scale_4 1;
transf_stop_iterations_1 2;
[fractal_3]
power 5.00000000000001;
transf_function_enabledAx false;
transf_function_enabledAy_false true;
transf_offset_0000 0 -0.7 0 0;
transf_offset_001 0.9 0 1;
transf_offset_1111 1.3 1 1 1;

[mclarekin]

maybe it is something else, woke up again with unexpected cpu usage (nothing to do with optimization).

Program running at 17% cpu usage while doing nothing. win64

PID: 16360, time: 0.431, cSettings::Decode(std::shared_ptr par, std::shared_ptr fractPar, cAnimationFrames *frames)
PID: 16360, time: 2607.956, Note: Settings saved to clipboard
PID: 16360, time: 6048.015, Warning: SHGetFileInfo() timed out for  C:\Users\graeme\mandelbulber\settings (:0,