add text above all candlesticks

I have 1 month data to plot. I already drew the candlestick chart. Now I wanna add text above all candlesticks. Here ia a question, the data length is about 40000, if I add text above all bars, that would be so slow and stucked in the UI rendering. Could I use ax.plot instead of fplt.add_text? How to realise it?

figure 1:

code:

class CandleText():

    def __init__(self, data, col_name, color):
        self.data = data
        self.col_name = col_name
        self.color = color
        self.high = self.data['high']

    def add_candle_text_all(self):
        date_ls = self.data
        print('add_candle_text_all index')
        date_index = self.data.index
        # print(date_index[-1])
        for i in tqdm(range(len(self.data))):
            fplt.add_text((date_index[i],self.high[i]), f'{self.high[i]}', self.color)

[Vankeee]

@highfestiva Love you so much, you saved me. Here is another question, how to remove them all at once?

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I found this funciton clear_items(drop_keys) in ScatterLabelItem class. I am confused about the “drop_keys”, what is drop_keys? How can I get the drop_keys?

[Vankeee]

It seems does not work. Fine, I give up, I’ll try it later. Thanks any way