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Improving App Performance

Why a screen is slow, and which causes you can do anything about

3 min readUpdated Sep 3, 2026

If ClapDiet feels slow, it is worth knowing which part is slow, because the

useful response is different for each.

Almost always: the connection

Every screen loads its content from your account. There is no local copy to

fall back on, so a slow connection is a slow app, and a dropped connection is a

screen that never finishes loading.

Test it in one step: open any other site or app. If that is slow too, it is the

connection.

On a weak signal, saving still works — it may just take a few seconds. ClapDiet

retries a failed request twice before giving up.

Sometimes: the food database

The food database holds millions of entries, and a broad search has more to

sift through than a narrow one. If searching feels slow:

  • Use two words rather than one. "chicken" has to rank far more than "chicken
  • thigh"

  • Add the brand for a packaged food
  • Scan the barcode instead, in the app
  • The first search after opening the app is often the slowest, and the next few

    are quicker.

    Occasionally: the browser

    On the web, a slow page with a fast connection usually means something local.

    In order:

  • Open a private or incognito window. If ClapDiet is fast there, an extension
  • or a stale cache is responsible, and you have narrowed it in one step

  • Close tabs you are not using
  • Clear the cache — how to
  • Update your browser
  • If the app closes itself

  • Reopen it. A one-off close on a busy phone is usually memory pressure rather
  • than a fault

  • Restart the phone if it happens repeatedly
  • If it closes reliably at the same point, that is a bug worth reporting, and
  • the steps to reach it are the most valuable part of the report —

    how to report it

    What will not help

  • Clearing the app's data to make it faster. There is almost nothing stored
  • locally, so there is nothing to clear that was slowing you down. It signs you

    out, and that is all.

  • Reinstalling. Same reason.
  • Turning off features. Nothing on your account makes screens load faster
  • or slower; the amount of history you have does not change how a screen loads,

    because each screen asks only for what it shows.

    Battery and data

    ClapDiet does nothing in the background. It does not track your location, does

    not run background fetches, and does not upload while closed — so it should not

    appear as a significant battery user. If it does, that is worth telling us

    about, with a screenshot of your phone's battery screen.

    Data use is light for everyday logging and heavier for uploads, since a lab PDF

    or a photo is a real file. More detail


    Related Articles:
  • Clearing Cache & Data
  • Common Issues
  • Tagsslowperformancelagspeedcrash
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