TFS 2010 API - 迭代QueryHistory中返回的更改集列表太慢了

var ChangesetList = TFSConnection.GetInstance().GetVersionControl().QueryHistory
    (Path, VersionSpec.Latest,0, RecursionType.Full, "", null, 
    VersionSpec.Latest, Int32.MaxValue,true, false);

foreach (Changeset changeset in ChangesetList)

List<Changeset>

VersionControlServer.QueryHistory

IEnumerable

IEnumerable

Cast<Changeset>()

OfType<Changeset>()

IEnumerable<Changeset>.

ToList()

List<Changeset>

ToList()

IEnumerable<T>

var ChangesetList = TFSConnection.GetInstance().GetVersionControl().QueryHistory     (Path, VersionSpec.Latest,0, RecursionType.Full, "", null, VersionSpec.Latest, Int32.MaxValue,**false,** false);