why is my model performing worse why does my machine learning perform poorly how is machine learning different from data science how do you improve your machine learning model why does my model perform poorly during observation phase why does my model perform worse as i add more observations is it normal for a model's performance to improve as more observations are added? why does my machine learning model perform worse with more observations? why would a model perform better with more observations? why does my model perform worse with more new observations as I increase the number of previous time values into the training phase? what makes model performance worse why does a machine learning model perform worse with more and more observations into the training phase why does machine learning models perform worse with more new observations? why does a model of a time series perform worse as more observations are added into the model? when to add new observations in a timecourse what is the best way to make the machine learning model do better? why does my machine learning model perform worse with more observations? how to make machine learning model perform better why does my model perform worse with more observations why does a machine learning model perform worse