Starting issue

Yes, you have to have the motor supported before you remove any motor mounts. But why did you replace the plugs and coils to begin with? A problem with the crank sensor is not just going to appear because you changed the plugs and coils. So, let's start with what the original issue was?

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

It started misfiring and would rev up or when I drive and try to accelerate it wouldn't get up to speed for a couple seconds. So then one day the car would crank but wouldn't stare. So, I took it to a store and they told me it was spark plugs, so I changed the plugs and coils.

And now the vehicle is cranking the engine over slower than it was? you mentioned the battery, is that the current concern?

No, the current concern is why my car is not wanting to crank and why does it want to crank but want start. even after replacing spark plugs and coils packs.

Does the check engine light come on while you are cranking the car over? And does the Tachometer move while cranking?

Yes it does.

If the tachometer is moving while you're cranking the engine, that is a good indication that the crank sensor is working. Thats where the tachometer gets its signal. So, for a no start condition you have to start with finding out what's missing. Is it missing spark, or fuel or compression? Those are the basics to a no start condition. These guides will show a lot of things relating to no start issues, but you can try spraying some starting fluid into the intake manifold, this is simulating a fuel source, if the engine tries to start with starting spray, then the engine is lacking a fuel source (i.e., faulty fuel pump, no injector pulse, etc.). The guide will show you how to do these things. You can use a spark tester, which you would plug into the ignition coil instead of the spark plug. The idea is to see what you're missing and go from there.
The first thing you should do to make this real quick and easy on you is on the fifth guide below. (how to test an ignition system) go right to step 22, It shows using a 12volt automotive test light to test for spark out of one of your coils. It's the fastest way to check for spark. After that test, you'll have a direction. If you have spark, then we check for fuel, if no spark, we go after the ignition system. Check a couple coils, go from there. Just keep the test light closer to the coil than your hand so you don't get a shock.

https://www.2carpros.com/articles/car-cranks-but-wont-start

https://www.2carpros.com/articles/how-to-test-a-fuel-injector

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

https://www.2carpros.com/articles/how-to-test-an-ignition-system