Po aktualizacji systemu wszystko działa szybciej, a ja mogę spokojnie wysyłać maile.

In this sentence, po means after, and it requires the locative case.

• aktualizacja = update
• po aktualizacji = after the update

So aktualizacja changes to aktualizacji because it is in the locative singular.

This is a very common pattern in Polish:

• po obiedzie = after dinner
• po pracy = after work
• po lekcji = after the lesson

So po aktualizacji systemu literally means after the update of the system.

Because aktualizacja systemu means update of the system.

The noun aktualizacja is followed by the thing being updated, and that thing usually goes into the genitive case.

• system = system
• systemu = of the system

So:

• aktualizacja systemu = system update / update of the system

This is similar to other Polish noun combinations:

• koniec filmu = end of the film
• naprawa komputera = repair of the computer
• instalacja programu = installation of the program

Because wszystko is grammatically treated as singular neuter in Polish.

Even though wszystko means everything, the verb agrees with it in the singular:

• wszystko działa = everything works
• wszystko jest gotowe = everything is ready
• wszystko było dobrze = everything was fine

So even though English learners may expect something plural because of the meaning, Polish grammar treats wszystko as singular.

Działać means to work, to function, or to operate.

In this sentence, wszystko działa szybciej means everything works/functions faster. This is a very natural verb for systems, software, devices, websites, apps, and machines.

Examples:

• Komputer działa dobrze. = The computer works well.
• Internet nie działa. = The internet isn’t working.
• Aplikacja działa szybciej. = The app works faster.

A learner might wonder about pracować. That verb can also mean to work, but it is more often used for people working, or sometimes machines physically operating. For software and systems, działać is usually the best choice.

Because szybciej is the comparative adverb: faster.

• szybko = quickly / fast
• szybciej = faster
• najszybciej = fastest

Since the sentence says things work faster after the update, Polish uses szybciej:

• działa szybko = works quickly
• działa szybciej = works faster

This is an adverb, because it describes how something works.

This a is a very common conjunction in Polish. It often means something like:

• and
• while
• whereas
• as for

In this sentence, a ja mogę spokojnie wysyłać maile has a slight shift of focus: and I can now send emails without worry.

Why not the others?

• i = plain and, just adding information
• ale = but, stronger contrast
• a = softer contrast or topic shift

So a ja can sound like:

• and I...
• while I...
• as for me, I...

Here it feels very natural because the first clause talks about the system, and the second moves to the speaker’s experience.

Yes, it could be left out.

Polish often omits subject pronouns because the verb already shows the person:

• mogę = I can

So mogę spokojnie wysyłać maile already means I can calmly/comfortably send emails.

Why include ja, then? For emphasis or contrast.

• a ja mogę... = and I can... / as for me, I can...

It gives a slight sense of personal perspective. It sounds more deliberate than just a mogę...

Mogę is the 1st person singular present tense of móc = can / to be able to.

Conjugation of móc in the present:

• mogę = I can
• możesz = you can
• może = he/she/it can
• możemy = we can
• możecie = you all can
• mogą = they can

Notice that the verb changes quite a bit, so it is worth memorizing.

In the sentence:

• ja mogę wysyłać maile = I can send emails

This is about aspect, which is very important in Polish.

• wysyłać = imperfective
• wysłać = perfective

Here, wysyłać is used because the sentence is talking about the ability to do the activity in general, not one single completed act.

So:

• mogę wysyłać maile = I can send emails / I’m able to send emails
• mogę wysłać maila = I can send one email / I’m able to send an email successfully

A simple way to think about it:

• wysyłać focuses on the process, repetition, or general activity
• wysłać focuses on completion

Since the sentence is about normal functioning after the update, wysyłać is the natural choice.

Literally, yes: spokojnie means calmly, peacefully, or quietly.

But in this sentence it has a more natural English sense like:

• without worry
• with peace of mind
• no problem
• smoothly

So mogę spokojnie wysyłać maile suggests something like:

• I can send emails without stress now
• I can safely/comfortably send emails now
• I can send emails without worrying that something will go wrong

It is not necessarily about physically sitting in a calm way. It is more about the situation feeling reliable and trouble-free.

Yes. mail has been borrowed into Polish, especially in everyday language.

• singular: mail
• plural: maile

So:

• wysyłać maile = to send emails

You may also see:

• e-mail
• e-maile
• maila / maili in other cases

In modern everyday Polish, mail and maile are very common and natural, especially in speech and informal writing.

In this sentence, maile is the accusative plural, and for this type of noun it looks the same as the nominative plural.

Because in Polish, when two clauses are joined by a, you normally put a comma before it.

So:

• Po aktualizacji systemu wszystko działa szybciej, a ja mogę spokojnie wysyłać maile.

This comma separates the two parts:

1. Po aktualizacji systemu wszystko działa szybciej
2. a ja mogę spokojnie wysyłać maile

This is standard Polish punctuation.

Yes. Polish word order is relatively flexible, though some versions sound more natural than others.

The given sentence is very natural:

• Po aktualizacji systemu wszystko działa szybciej, a ja mogę spokojnie wysyłać maile.

But you could also hear variations like:

• Po aktualizacji systemu wszystko działa szybciej, a mogę spokojnie wysyłać maile.
• Po aktualizacji systemu ja mogę spokojnie wysyłać maile, a wszystko działa szybciej.
  This changes the emphasis and sounds less neutral.

The original version works well because:

• Po aktualizacji systemu sets the context first
• wszystko działa szybciej gives the general result
• a ja mogę... shifts to the speaker’s personal experience

So yes, word order can change, but the original is smooth and idiomatic.

Not necessarily. That is the literal structure, but in natural English you would often say:

• After the system update
• After updating the system
• After the system was updated

Polish often uses noun phrases like aktualizacja systemu, where English may prefer a slightly different structure.

So for learning purposes, it helps to understand the grammar literally:

• po = after
• aktualizacji = update, in locative
• systemu = of the system

But in real translation, smoother English may be better.