Why is my Vauxhall Astra losing power?

I recently noticed that my Vauxhall Astra is losing power and struggling to accelerate. Can anyone suggest what could be causing this issue and how to fix it?

It could be due to a clogged air filter. If the air filter is dirty, it can restrict air flow to the engine and cause loss of power. Try replacing the air filter and see if it improves the performance.

Another possible cause could be a fuel delivery issue. Check the fuel filter and fuel pump to make sure they are functioning properly. If they are clogged or malfunctioning, it can affect the engine's performance.

I had a similar issue and it turned out to be a faulty ignition coil. If the ignition coil is not working correctly, it can cause misfires and loss of power. Have a mechanic check the ignition system.