If it makes any of you feel better, even moderators are hampered by the 4 seconds limit.
Whitelisting will work the best for you. I see LoyceV confirmed that global mods can whitelist too so try reaching out them too.
Good luck.
I can also whitelist and I see that OP is already whitelisted (either due to being manually whitelisted or due to having bought a Copper membership). Only admins can increase the allowed post reporting rate so if you can make a good case contact theymos.