Suggestions needed for custom training

[dbkalaria]

Hello, I'm currently using EasyOCR for text text extraction from a sheets with high resolution on avg (7200x4800). As EasyOCR is using the craft text detection model to localize the text I want to train a custom model for that as the pretrained model is not giving perfect bounding boxes for some text and there are some cases where the texts are missed which leads to lower recognition accuracy.

Can anyone help me with some suggestions on how should I train the model to get better accuracy as the text in my images are small and congested at some places.