Hi @dklvch,
Int8 depthwise convolution is very slow when filters is not a multiple of 8. Could you try with filters = 16 or 24?
dummy = torch.rand(1, 22, 256, 256) => dummy = torch.rand(1, 24, 256, 256)
model = Model(filters=22, quant=False).eval() => model = Model(filters=24, quant=False).eval()
model = Model(filters=22, quant=True).eval() => model = Model(filters=24, quant=True).eval()