How to space out cards after having backed up reviews

I have backed up reviews and I am wondering how to space out my cards.

Error message (don't change this)
Anki 23.12.1 (1a1d4d54)  (ao)
Python 3.9.15 Qt 5.14.2 PyQt 5.14.1
Platform: macOS-10.15.7-x86_64-i386-64bit

Traceback (most recent call last):

  File "aqt.taskman", line 142, in _on_closures_pending

  File "/Users/pranjalgaur/Library/Application Support/Anki2/addons21/1322529746/gui/auto_sync.py", line 99, in sync_with_ankiweb
    future.result()

  File "concurrent.futures._base", line 439, in result

  File "concurrent.futures._base", line 391, in __get_result

  File "/Users/pranjalgaur/Library/Application Support/Anki2/addons21/1322529746/gui/operations/utils.py", line 39, in wrapper
    return func(*args, **kwargs)

  File "/Users/pranjalgaur/Library/Application Support/Anki2/addons21/1322529746/gui/operations/ankihub_sync.py", line 75, in _sync_with_ankihub_inner
    subscribed_decks = client.get_deck_subscriptions()

  File "/Users/pranjalgaur/Library/Application Support/Anki2/addons21/1322529746/ankihub_client/ankihub_client.py", line 614, in get_deck_subscriptions
    raise AnkiHubHTTPError(response)

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Hello,

Thereโ€™s not really any particular way to space out cards, tbh. You can add fewer cards, suspend some of your existing cards, or change your desired retention (if youโ€™re using FSRS).

Beyonce that, thereโ€™s not an easy way to just space cards out. If you give me a better idea of what youโ€™re hoping to accomplish I can do my best to help, though. :slight_smile: