Is there anything I can do to have these limits increased?
Only two members have discussed the time limit for reporting spam.
1. @Welsh.
Topic: [Unofficial Guide] Reporting effectively2. @suchmoon
Topic: [HACK] One-click mod report, not for the faint of heartEdit: I should mention that queuing has certain limitations. "let PROMISE_TIMEOUT = 120000;" near the top of bct-background.js basically limits the time to wait for the report to be submitted to ~2 minutes. At 5 seconds between reports plus loading time it allows up to ~15 reports to be queued.
Only the two of them can solve your problem about spam delivery time.
Maybe they both have a solution for you, in terms of the 4 second limit.
I hope they look at this topic and answer the complaints you are experiencing right now.