You are training an LSTM-based model on Google AI Platform to create text summaries. Below is the job submission script you are using: gcloud ai-platform jobs submit training $JOB_NAME --package-path$TRAINER_PACKAGE_PATH --module-name $MAIN_TRAINER_MODULE --job-dir$JOB_DIR --region $REGION --scale-tier basic -- --epochs 20 --batch_size=32 --learning_rate=0.001. Your goal is to minimize the training time without significantly compromising the accuracy of the model. Considering the current settings, what should you do to achieve this balance?