If I open jit.ndi.send.maxhelp and turn on audio, Max Audio Status windows shows a very high CPU usage (more than 62%).
resulting in glitchy audio.
But in system task manager, Max takes only 0.3 % of CPU

no other patch or app is running, I've tried with many different audio interfaces and drivers (ASIO/mme/ ...) : same issue.
I'm pretty sure this used to work smoothly on the same computer last year (with jit.ndi 0.1)

here are my Max support informations :

{
"version" : "Beta Version 8.2.0 (98c49ff) (64-bit windows)",
"platform" : "windows",
"arch" : "x64",
"osversion" : "Microsoft Windows 10 (build 19041), 64-bit",
"samplerate" : 44100,
"iovs" : 256,
"sigvs" : 64,
"scheduler_in_audio_interrupt" : "on",
"audio_drivername" : "ad_asio",
"audio_driver_subname" : "ASIO Fireface USB",
"license" : "permanent full",
"machine_id" : "24d464e7cd48f2abe65be5d74b318d52",
"eventinterval" : 2,
"schedinterval" : 1.0,
"overdrive" : "off",
"pollthrottle" : 400,
"queuethrottle" : 1000,
"sysqelemthrottle" : 1000,
"refreshrate" : 33.333332061767578,
"schedslop" : 25.0,
"eventprobing" : 1,
"mixerparallel" : "off",
"mixercrossfade" : 0,
"mixerlatency" : 30.0,
"mixerramptime" : 10.0,
"videoengine" : "viddll",
"glengine" : "gl2",
"packages" : {
"bach" : "0.8.1",
"BEAP" : "1.0.3",
"bump.map.generator" : "",
"CNMAT Externals" : "1.0.4",
"CNMAT Odot" : "v1.2-20_beta_3.1-8-g039c9d2-master",
"cv.jit" : "2.0.0",
"ease" : "1.2.1",
"gl3" : "0.2.3",
"hap" : "1.0.7",
"ICST Ambisonics" : "3.0.0",
"imp.dmx" : "0.5",
"ISF" : "1.0.2",
"jit.mo" : "1.1.4",
"jit.ndi" : "0.2.0",
"karma" : "1.0.0",
"link" : "1.2.6",
"max-mxj" : "7.2.5",
"Max_Worldmaking_Package-devel" : "",
"maxforlive-elements" : "0.4.12",
"MC_package" : "",
"mi-gen" : "1.1.0",
"Mira" : "1.2.1",
"Miraweb" : "1.2.5",
"MMF-fs" : "",
"MuBu For Max" : "1.9.17",
"MVC-pattr" : "",
"Node For Max" : "1.3.6",
"OSSIA" : "5018cd5",
"petra" : "1.1.0",
"RISE" : "1.0.2",
"sensel" : "0.4.1",
"spat5" : "5.2.2",
"Spout" : "2.0.72",
"VIDDLL" : "1.2.5",
"Video & Graphics" : "7.2.0",
"Vizzie" : "2.1.5",
"VR" : "1.0.1",
"vr.world_recipes" : "",
"XRAY" : "1.0.1",
"zero" : "1.0.3",
"zsa.descriptors" : "1.2.0"
}

}