Features importance XGBOOSTRegressor

i’am doing a regression with xgboostRegressor and i have after plot the feature importance of my model i have get a so lower coefficient of the feature , the highest value of coefficient is 0.01 and the others 0.005 etc … i have found a lower R2 could i interpret that the features haven’t strong relationship with my response variable that’s why i have found a poor R2 value ? and what’s is the difference with feature importances with XGBoostClassifier because i found a different coefficient are higher than in regression .

© Copyright 2013-2019 Analytics Vidhya