Replacing Nested CDT With Query Sync Records and Record Relationships

HI everyone, 

I’m having a nested CDT that takes quite some times to query data. Thus, I though replacing it with query sync records using relationships between them can be a more time efficient solution. Below is how my record query looks like: 

a!queryRecordType(
  recordType: 'recordType!AAA CF Check List Instance SR',
filters: a!queryLogicalExpression(
operator: a!defaultValue(ri!filterOperator, "AND"),
logicalExpressions: ri!logicalExpression,
ignoreFiltersWithEmptyValues: true,
filters: append(
{
a!queryFilter(
field: 'recordType!AAA CF Check List Instance SR.fields.isactive',
operator: "=",
value: ri!isActive
),
a!queryFilter(
field: 'recordType!AAA CF Check List Instance SR.fields.checkListInstanceId',
operator: "in",
value: ri!id
),
a!queryFilter(
field: 'recordType!AAA CF Check List Instance SR.fields.checkListId',
operator: "in",
value: ri!checklistId
),
a!queryFilter(
field: 'recordType!AAA CF Check List Instance SR.fields.entityId',
operator: "in",
value: ri!entityId
),
a!queryFilter(
field: 'recordType!AAA CF Check List Instance SR.fields.entityName',
operator: "in",
value: ri!entityName
)
},
ri!filters
)
),
fields: {a!selectionFields(
allFieldsFromRecordType: 
'recordType!AAA CF Check List Instance SR')
,
a!selectionFields(
allFieldsFromRecordType: 
recordType!AAA CF Check List Instance SR.relationships.aaaCfCheckListItemInstanceSr''),
a!selectionFields(
allFieldsFromRecordType: 
''recordType!AAA CF Check List Instance SR.relationships.aaaCfCheckListItemInstanceSr.relationships.aaaRdCheckListItemSr''),
a!selectionFields(
allFieldsFromRecordType: 
''recordType!AAA CF Check List Instance SR.relationships.aaaCfCheckListItemInstanceSr.relationships.aaaRdCheckListItemSr.relationships.item'')}
,
pagingInfo: if(
isnull(ri!pagingInfo),
a!pagingInfo(startIndex: 1, batchSize: 1000),
ri!pagingInfo
),
fetchTotalCount: ri!fetchTotalCount,
relatedRecordData: ri!relatedRecordData
).data

However the record type query is much slower than the nested CDT query, even without selecting all fields and only get some of the fields can take double the time. 

Do you have any other suggestion about what can I do to either reduce time querying nested CDT or replace it with a more suitable solution?

Thank you