Downgrading xmltodict to 0.12.0 makes the script slow

I face issue similar to issue #177 and i saw solutions provided with PR #178 and i tried this way (updating _init.py) and it makes fetching WI's very slow
As well as i tried downgrading my xmltodict to <=0.12.0 but this also makes fetching WI's very slow

Is there any alternative solution for this ? I would like to get attributes **owned by or plannedFor** but i only get them as a link like : https://rb-alm.com/ccm/oslc/workflows/_qi848CJaEeSy9NmiE0zU4Q/states/com.bosch.rtc.configuration.workflow.workflowdefinition.review/com.bosch.rtc.configuration.workflow.workflowdefinition.review.state.s1