Just to queue up a code snapshot, some requests take a really long time. E.g. https://sourceforge.net/p/texstudio/code/4175/tarball had the following timings. I've seen it with other high-revisioned SVN repos like sf.net/p/nhcontrib/code too.
{
    "mongo": 56,
    "repo.Commit.get_tree": 2,
    "repo.Commit.set_context": 0,
    "svn_tool.rev_parse": 138,
    "svn_tool._oid": 0,
    "repo.Commit.shorthand_id": 0,
    "total": 43615,
    "svn_tool.symbolics_for_commit": 0,
    "svn_tool.url_for_commit": 139,
    "sidebar": 144,
    "jinja": 16384,
    "svn_tool.__init__": 0,
    "svn_tool._path_to_root": 43138,
    "socket_write": 0,
    "socket_read": 36,
    "repo.Tree.set_context": 0,
    "svn_tool._revno": 0,
    "svn_tool.shorthand_for_commit": 0,
    "repo.Commit.url": 0,
    "svn_lib.info2": 43052,
    "ming": 97,
    "svn_tool.commit": 2
}
recurse & depth params to info2 could probably be changed to false.
strace might be necessary to see what info2 is doing
we could cache the result if needed
allura:cj/6603Confirmed that adding
recurse=Falsedropsinfo2time down from 27 sec to 0.01 sec and still functions as expected.