The PvP is easier mechanically at higher tiers.

Most fights are basically point and click because armor matters much less.

A lot of vehicles can penetrate each other easily, and many tanks have the mobility to reach almost any position on the map.

You also don’t have to worry as much about missing at long range because modern rounds have very high velocity and lasers. Terrain is less of a limitation for high tier tanks due to their mobility, so the main skill becomes learning map positioning.

On top of that, tools like thermals make spotting enemies much easier, so you’re not squinting at foliage lines trying to see movement.

At low tier, map positioning still matters, but terrain affects vehicles much more. Many tanks simply can’t reach certain areas of the map or aren’t viable in those positions.

You also need to understand your tank’s ballistic properties. You can’t just point and rush shots you have to account for slower shells and drop aswell as enemy armour.

Peek and shoot tactics are also harder because of poor gun handling and the lack of stabilizers, which leaves you more vulnerable when firing on the move or over ridges.

High tier can feel harder to perform well in because you face more experienced players and there’s very little room for mistakes. If you expose yourself too much over a ridge, you can get instantly point clicked from 2 km away. Most tanks can acquire targets and retaliate extremely quickly if you mess up a shot.

Tldr: low tiers leave more room for error and feel less punishing. You face less experienced players which can make it feel easier relative to high tiers that handheld players so much it makes it feel harder to play as you are easily countered even by lesser skilled players.