change loading strategy for questions w/ answeroptions

problem with Future.traverse is that it spawns to many Futures, blocks when too many requests come in around the same time
3 jobs for performanceOptimization in 2 minutes and 52 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
passed #33048
sbt
stylecheck

00:01:52

passed #33049
sbt
test

00:02:28

 
  Synchronization
passed #33050
allowed to fail
sync_mirror

00:00:24