I've had a look at your TT Model and it is a model that has quite a few good appraisals, it looks more than adequate to support your needs at present.
I've had quite bad experiences with Modern Pressed Vinyl sourced through the larger supply chains.
Fortunately these purchases are supplied with good returns policies, so it is prudent to choose to make use of this side of the service.
Also a MFSL LP might be a bit more pricey, but can prove to be a good benchmark to compare other vinyl purchases against, when another LP is noticeably inferior in the comparison, returning it and receiving another copy will in most cases prove to be a corrective measure, where a noticeably improved LP is received.
Avoid buying discounted copies of a New Release LP from larger supply chains, as these are possibly items that are already returned by customers.
The TT Belt on your TT, is claimed to be a Silicone Material, is there any sign of a wetness on the belt, as a Silicone Oil residual can easily create a slippage.
The TT's motor is a design that is very accurate for speed stability and I doubt if it has a fault, but maybe should not be ruled out.
The Stylus being quite dirty can cause a replay to sound quite distorted and unenjoyable, or worse a damaged cantilever can produce a replay that sounds very incorrect and concerning.
It looks like there is a bit of hill to climb, to get you to the place where the Vinyl side of the system, is proving to be quite satisfying.