XML is verbose, it takes resources to be written (CPU and memory) and for analysis, CSV is great so forget about XML. Furthermore, for massive load tests there are many result data you don't need.

So, in user.properties, add:

jmeter.save.saveservice.output_format=csv

jmeter.save.saveservice.data_type=false

jmeter.save.saveservice.label=true

jmeter.save.saveservice.response_code=true

jmeter.save.saveservice.response_data.on_error=false

jmeter.save.saveservice.response_message=false

jmeter.save.saveservice.successful=true

jmeter.save.saveservice.thread_name=true

jmeter.save.saveservice.time=true

jmeter.save.saveservice.subresults=false

jmeter.save.saveservice.assertions=false

jmeter.save.saveservice.latency=true

jmeter.save.saveservice.bytes=true

jmeter.save.saveservice.hostname=true

jmeter.save.saveservice.thread_counts=true

jmeter.save.saveservice.sample_count=true

jmeter.save.saveservice.response_message=false

jmeter.save.saveservice.assertion_results_failure_message=false

jmeter.save.saveservice.timestamp_format=HH:mm:ss

jmeter.save.saveservice.default_delimiter=;

jmeter.save.saveservice.print_field_names=true