fix streaming

app.py

@@ -162,19 +162,19 @@ def run(model_name, tab, instruments, drum_kit, bpm, mid, midi_events, seed, see
     init_msgs = [create_msg("visualizer_clear", False)]
     for tokens in mid_seq:
         init_msgs.append(create_msg("visualizer_append", tokenizer.tokens2event(tokens)))
+    t = time.time()
     yield mid_seq, None, None, seed, send_msgs(init_msgs)
     model = models[model_name]
     midi_generator = generate(model, mid, max_len=max_len, temp=temp, top_p=top_p, top_k=top_k,
                          disable_patch_change=disable_patch_change, disable_control_change=not allow_cc,
                          disable_channels=disable_channels, generator=generator)
-    t = time.time()
     events = []
     for i, token_seq in enumerate(midi_generator):
         token_seq = token_seq.tolist()
         mid_seq.append(token_seq)
         events.append(tokenizer.tokens2event(token_seq))
         ct = time.time()
-        if ct - t > 0.2:
+        if ct - t > 1:
             yield mid_seq, None, None, seed, send_msgs([create_msg("visualizer_append", events), create_msg("progress", [i + 1, gen_events])])
             t = ct
             events = []