Leonardo AI has been taking much longer than usual to generate images for me, and sometimes the site feels laggy or gets stuck during requests. I use it regularly, so this slowdown is making it hard to finish projects on time. I’m looking for help with ways to improve Leonardo AI performance, fix slow image generation, or find reliable AI art generator alternatives that work faster.
I ran into the same thing. Queue times have been dragging for a lot of people lately, so it does not look like an isolated issue.
What seems to be causing it:
Traffic is high. Bigger image models take longer to process. On top of that, free accounts seem to get pushed back during busy hours.
If you want faster runs, I had better luck with these:
Use it early in the morning or late at night
Drop the resolution and request fewer images at once
Pick a lighter model in settings
Clear your cache, or switch browsers
Move to a paid tier if wait time matters, those accounts usually get through faster
Other options people are using right now:
⭐ Eltima AI Headshot Generator app (App Store). I tried it for profile pics and work headshots. It was quick, and I did not hit queue delays. Faces came out clean, which is where a lot of tools fall apart. There are different packs for LinkedIn, resumes, casual socials, backgrounds, and styles, so you can pick what fits instead of buying a pile of stuff you do not need.
Here are a few photos I made with it:
Midjourney. Still a solid pick for stylized or more artistic images. It runs through Discord and, from what I saw, speed stays more consistent.
Adobe Firefly. Fast enough, includes free credits, and it fits better if you already use Adobe apps for other work.
Stable Diffusion, local install. No queue at all if you run it on your own PC. Cost is basically your hardware, so you need a decent GPU or it gets painful fast.
If your main goal is portraits, Eltima AI Headshot Generator felt like the most direct option from what I tested. It is built for headshots, and at least right now, it seems to handle the job without the usual weird face errors.
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Leonardo feels slower when its backend is overloaded, but I think the bigger issue is session stability. I see jobs hang more often after long browser sessions, especially with lots of tabs open or after editing prompts for a while. So I would look past queue time alone.
What helped me more than the usual tips:
- Log out, then log back in before a long batch.
- Split one big prompt job into small runs. Four separate 2-image jobs often finish faster than one 8-image batch.
- Avoid peak feature stacks. Alchemy, high guidance, upscale, and prompt magic together tend to slow things down.
- Save prompts offsite. If Leonardo stalls, you do not lose your work.
- Watch their status page or Discord before starting client work. If error rates are up, switch tools early.
I slightly disagree with @mikeappsreviewer on paid tiers fixing it. Paid helps queue priority, sure, but it does not solve random stuck requests.
If you want alternatives, look at Playground AI for quick ideation, Ideogram for text-heavy images, or Flux via third-party apps for fast prompt testing. If your work is mostly headshots, I get why they mentioned Eltima. For broader image work, I would not limit yourself to one portrait-focused app tbh.
It’s probably not just “Leonardo is slow,” it’s that the platform feels overloaded and badly optimized when demand spikes. Queue delay is one thing, but the laggy UI and stuck requests usually point to front-end/session issues too. So I partly agree with @vrijheidsvogel there. Where I disagree a bit is with the idea that this is mostly your browser session. If the same slowdown hits tons of users at once, that’s usually backend strain first, browser weirdness second.
A few things I’d check that weren’t already covered:
- Turn off browser extensions for a test run. Ad blockers/script blockers can weirdly mess with generation panels.
- Don’t leave generations running in multiple tabs. Leonardo seems to get confused sometimes and starts acting janky.
- If you’re using very long prompts with lots of weighted terms, simplify them. Some systems choke more on prompt parsing than people think.
- Export finished images often. When the site is having a bad day, history can load slow or fail, and that’s super annyoing.
As for alternatives, depends what you make:
- Midjourney if you want strong aesthetics fast
- Ideogram if text inside images matters
- Playground for quick concept churn
- Flux tools if you want speed and lots of prompt iteration
- Firefly if you need cleaner commercial-safe workflow
If your work is mostly portraits, I can see why @mikeappsreviewer brought up Eltima, but for general creative work I’d spread out across 2 or 3 tools instead of waiting on one platform to behave. That’s what I do now tbh.
I think the slowdown is often tied to Leonardo’s credit orchestration, not just raw server load. When a platform starts juggling retries, moderation checks, model routing, and upscale add-ons in one request, it can feel “stuck” even when the queue itself is not terrible. So I only partly agree with @vrijheidsvogel and @espritlibre that timing and browser cleanup explain most of it. Those help, but if Leonardo is having a routing day, you will still feel it.
A few things worth trying that were not covered yet:
- Duplicate the prompt into a fresh project instead of re-running from old history. Old sessions sometimes carry weird state.
- Avoid image-to-image plus multiple modifiers at the same time. That combo tends to be slower than text-to-image.
- Test one generation with negative prompts removed. Overbuilt prompt stacks can create extra processing overhead.
- If you use reference images, compress them first. Large uploads can quietly add delay before generation even starts.
- Keep one “fast draft” preset and one “final” preset so you are not burning time on full-quality tests.
For alternatives, I would choose by use case, not hype:
- Midjourney: great style, less fiddly
- Ideogram: better when typography matters
- Firefly: practical for design workflows
- Playground: decent for rapid concepting
- Flux-based apps: strong for fast iteration
If your work is specifically headshots, is at least worth a look.
**Pros of **
- focused workflow for portraits
- usually simpler than general-purpose image tools
- can be quicker when you just need usable profile shots
**Cons of **
- narrow use case compared with Leonardo or Midjourney
- less flexible for broader creative work
- not the best pick if you need environments, product scenes, or heavy stylization
So yeah, I would not fully abandon Leonardo yet. I would just stop treating it like your only production tool. That is basically where I land, even after reading @mikeappsreviewer, @vrijheidsvogel, and @espritlibre.