Question about speed feat.

[Ser_Hakim_Dayne]

“I tell you what, we’ll toss for it.” Sajaam held his coin up to the light, gold flashing. “Heads, we kill you. Tails, I tell you where Murcatto is …” His smile was all bright teeth in his dark face. “Then we kill you.” There was the slightest ring of metal as he flicked his coin up.
Shenkt sucked in breath through his nose, slow, slow.
The gold crawled into the air, turning, turning.
The clock beat deep and slow as the oars of a great ship.
Boom . . . boom . . . boom . . .
Shenkt’s fist sank into the great gut of the fat man on his right, almost to the elbow. Nothing left to scream with, he gave the gentlest fragment of a sigh, eyes popping. An instant later the edge of Shenkt’s open hand caved his astonished face in and ripped his head half-off, bone crumpling like paper. Blood sprayed across the table, black spots frozen, the expressions of the men around it only now starting to shift from rage to shock.
Shenkt snatched the nearest of them from his chair and flung him into the ceiling. His cry was barely begun as he crashed into a pair of beams, wood bursting, splinters spinning, mangled body falling back down in a languid shower of dust and broken plaster. Long before that one hit the floor, Shenkt had seized the next player’s head and rammed his face through the table, through the floor beneath it. Cards, and broken glasses, chunks of planking, fragments of wood and flesh made a swelling cloud. Shenkt ripped the half-drawn hatchet from his fist as he went down, sent it whirling across the room and into the chest of the tattooed man, halfway up from his cushion and the first note of a war cry throbbing from his lips. It hit him haft first, so hard it scarcely mattered, spun him round and round like a child’s top, ripped wide open, blood gouting from his body in all directions.
The flatbow twanged, deep and distorted, string twisting as it pushed the bolt towards him, swimming slowly through the dust-filled air as if through treacle, shaft flexing lightly back and forth. Shenkt snatched it from its path and drove it clean through a man’s skull, his face folding into itself, meat bursting from torn skin. Shenkt caught him under the jaw and sent his corpse hurtling across the room with a flick of his wrist. He crashed into the archer, the two bodies mashed together, flailing bonelessly into the wall, through the wall, out into the alley on the other side, leaving a ragged hole in the shattered planks behind them.
The guard from the door had his mace raised, mouth open, air rushing in as he made ready to roar. Shenkt leaped the ruins of the table and slapped him backhanded across the chest, burst his ribcage and sent him reeling, twisting up like a corkscrew, mace flying from his lifeless hand. Shenkt stepped forwards and snatched Sajaam’s coin from the air as it spun back down, metal slapping into his palm.
He breathed out, and time flowed again.
Shenkt's fist trembled before Sajaam's slack face. Steam hissed from it, then molten gold, trickling from between his fingers, running down his forearm in shining streaks.

• Best Served Cold, IV - Visserine, Other People's Scores

How fast is this speed ?

 

[Ser_Hakim_Dayne]

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[Ser_Hakim_Dayne]

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[Ser_Hakim_Dayne]

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[Ser_Hakim_Dayne]

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[Ser_Hakim_Dayne]

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[Ser_Hakim_Dayne]

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[Ser_Hakim_Dayne]

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[Sus]

At least immobile